Claims:I/We claim:
1. A straddle-type vehicle (100) comprising:
a frame assembly (105), said frame assembly (105) comprising:
a front frame (106);
a main frame (107) extending rearwardly from said front frame (106), and
a pair of rear frames (108) extending rearwardly from said main frame (107);
a power source (405) configured to propel said vehicle (100), said power source (405) disposed substantially below said pair of rear frames (108);
a first controller (302) configured to control said power source (405); and
a second controller (201) configured to control a sub-power source (401a),
wherein,
at least one of said first controller (302) and said second controller (201) being mounted to a cross member (202) disposed across and connecting said pair of rear frames (108).
The straddle-type vehicle (100) as claimed in claim 1, wherein at least one of said first controller (302) and said second controller (201) being disposed at a close proximity to an end portion (108r) of said pair of rear frames (108).
2. The straddle-type vehicle (100) as claimed in claim 1, wherein said at least one of said first controller (302) and said second controller (201) being mounted to a support structure (407), said support structure (407) being mounted to a cross member (202) connecting across said pair of rear frames (108).
3. The straddle-type vehicle (100) as claimed in claim 1, wherein said at least one of said first controller (302) and said second controller (201) being disposed along a central axis (201c), said central axis (201c) passes through lateral centre of at least one of said first controller (302) and said second controller (201), said central axis (201c) is intersecting a vehicle central longitudinal axis (LM) at predetermined angle (?).
4. The straddle-type vehicle (100) as claimed in claim 4, wherein said predetermined angle (?) is substantially equal to 90 degrees.
5. The straddle-type vehicle (100) as claimed in claim 1, wherein said pair of rear frames (108) are configured to structurally support a mounting portion (160m) of a rear fender (160), said at least one of said first controller (302) and said second controller (201) is mounted to said rear fender (160).
6. The straddle-type vehicle (100) as claimed in claim 1, wherein said first controller (302) being disposed on one of a right-side rear frame (108a) and a left side rear frame (108b) of said pair of rear frames (108).
7. The straddle-type vehicle (100) as claimed in claim 1, wherein said power source (405) being disposed in a rear portion of said vehicle (100) and below and in between said pair of rear frames (108), said first controller (302) being disposed along said longitudinal axis (LM) such that the first controller (302) being placed above said power source (405) when viewed from a plan view.
8. The straddle-type vehicle (100) as claimed in claim 1, wherein said first controller (302) being disposed on any one rear frame of said pair of rear frames (108), wherein a transverse axis (TR) intersects substantially orthogonally said first controller (302) and said power source (405).
9. The straddle-type vehicle (100) as claimed in claim 1, wherein said vehicle includes a first wiring harness (401), a second wiring harness (303) and a third wiring harness (402).
10. The straddle-type vehicle (100) as claimed in claim 9, wherein said first controller (302) is disposed on the same side as that of the first wiring harness (401), the second wiring harness (303), and the third wiring harness (402).
11. The straddle-type vehicle (100) as claimed in claim 1, wherein said second controller (201) includes one or more fins (404).
12. The straddle-type vehicle (100) as claimed in claim 1, wherein said second controller (201) includes one or more couplers (304) on a side surface, said one or more couples (304) are disposed on any one of a right side and a left side of said second controller (201), wherein said first controller (302) is disposed on a same side in said vehicle, as that of said one or more couplers (304).
13. The straddle-type vehicle (100) as claimed in claim 1, wherein one or more auxiliary energy sources (203) are mounted to said front frame (106), said first controller (302), the second controller (201) and the one or more auxiliary energy sources (203) are disposed along a vehicle central longitudinal axis (LM).
, Description:TECHNICAL FIELD
[0001] The present subject matter relates to a straddle-type vehicle. More particularly but not exclusively, to vehicle layout of the straddle-type vehicle for packaging of one or more control units in the vehicle.
BACKGROUND
[0002] In conventional vehicles, one or more control units are packaged on frame assembly of the vehicle. The packaging of the one or more control units are achieved by mounting the one or more control units by means of mounting brackets. The mounting brackets are welded on the frame assembly. The frame assembly consisting of mounting brackets is usually covered by plurality of body panels made of plastic or metal and the body panels are fastened at all intended joints. The plurality of body panels should be configured such that they can completely cover the frame along with the mounting brackets as desired, in the vehicle. Conventionally, the one or more control units along with their mounting brackets are disposed either on right side or left side of the vehicle.
BRIEF DESCRIPTION OF THE DRAWINGS
[0003] The detailed description is described with reference to an embodiment of a saddle type two wheeled with accompanying figures. The same numbers are used throughout the drawings to reference like features and components.
[0004] Figure 1 depicts a side view of an exemplary saddle-type vehicle 100, in accordance with an embodiment of the present subject matter.
[0005] Figure 2 illustrates a right-side perspective view of the straddle-type vehicle.
[0006] Figure 3 illustrates a rear perspective view of a rear side of the saddle type vehicle.
[0007] Figure 4 illustrates a rear perspective view of the straddle type vehicle.
[0008] Figure 5 illustrates a right-side view of the vehicle layout of the straddle type vehicle according to an embodiment of the present invention.
[0009] Figure 6 illustrates a plan view of the straddle type vehicle according to an embodiment of the present invention.
DETAILED DESCRIPTION OF THE INVENTION
[00010] In conventional vehicles, in a known art, the mounting locations for one or more controllers, in particular, a controller to control generator, generally known as an ISG controller includes mounting of the ISG controller on one side of a main frame of a frame assembly of the vehicle. In the vehicle, the ISG controller lies between the side of the main frame and a side panel that covers the side of the main frame. Generally, as known in the art, the ISG controller is bigger in size and rectangular in shape. The ISG controller with bigger dimensions requires pre-defined space, wherein the space is capable of accommodating the ISG controller that is larger in size. To achieve the same, the shape and size of the side panel may undergo changes as required to facilitate packaging of the ISG controller. The requirement of change in the side panel, that is able to cover the length and width of the bigger ISG controller arises which can adversely impact the compact packaging and width of the vehicle. Further, in order to prevent changes in the shape and size of body panels of the vehicle, the size of the ISG controller has to be compromised, in turn, the requirement of incorporating the ISG controller of higher configuration has to be foregone which is undesirable.
[00011] Further, the ISG controller is mounted on the frame assembly. The mounting of the ISG controller on the frame assembly is facilitated by one or more brackets welded on the frame assembly. If mounted on the frame assembly, then typically the mounting is carried out only at one portion of the ISG. The mounting, wherein only a portion of the ISG controller is configured for mounting the ISG, it facilitates usage of smaller brackets as mounting means and thereby eliminate undesirable bigger brackets. The bigger brackets require a bigger welded joint with the frame assembly. However, the conventional mounting means by means of a portion of the SIG controller, being used to mount the ISG controller on the frame assembly causes overhang of the ISG controller. The overhang produces unwanted vibrations that may adversely affect stable functionality of the ISG controller.
[00012] Further, the mounting of the ISG controller on any other portion of the frame assembly may cause compromise in utility space available for storage, in addition to compromise in storage space of a fuel tank assembly.
[00013] For example, in sleeker vehicles, a rear portion has shape that is comparatively compact. In such sleeker vehicles, the space available between the side panels and portion of the frame assembly is almost negligible. In this particular type of compact layout vehicle, the mounting of the ISG controller may have to be shifted towards a vehicle center line. The presence of the ISG controller closer to the vehicle center line has undesirable impact on the utility space and also adds to the requirement of modification in shape of a utility box to accordingly match with the profile of the ISG controller.
[00014] The ISG controller comprises of plurality pins to connect with one or more couplers and wiring harness from systems like a power source, an auxiliary energy source, etc.
[00015] The mounting of the ISG controller and the location of the ISG controller in the vehicle plays an important role. The orientation of the one or more couplers should be such that the accessibility of the one or more couplers is hassle free for ease of service and maintenance. The accessibility of the one or more couplers is critical for service, diagnostics as well as wiring harness routing. However, in sleeker vehicles, as explained above, the one or more couplers, being disposed closer to the vehicle center plane and being away from the external surface of the vehicle body, cannot be accessed easily.
[00016] Further, the location of the ISG controller in the vehicle should be such that the vehicle layout includes space for wiring harness that connects between the ISG controller and the systems like a power source, an auxiliary energy source, etc. The vehicle layout should be such that a various size of wiring harness can be accommodated. Additionally, the distribution of the wiring harness for various vehicle aggregates from the front most headlamp unit to the tail lamp unit tend to span over the length and breadth of the entire vehicle volume thereby leading to need of configuring plurality of wiring harness in the vehicle which can be in order of minimum 3 sets of wiring harness or more. Thus, there exists as challenge of minimizing the wiring harness sets as well as routing them in a hassle-free manner so that they do not entangle with each other, are easy for assembly, service, fault detection, as well as avoid any undesirable electromagnetic interference. The space for wiring harness available in the vehicle layout is an important factor to be considered. The wiring harness in the vehicle layout should be routed such that all the clearance requirements including non-interference with other parts in the vehicle and other sub systems is achieved.
[00017] The interference of the wiring harness with other sub-systems in the vehicle may cause undesired vibrations and loosening of various wires/cables involved in the wiring harness. Further, there might be chance of occurrence of short circuit due to constant pressure exhibited on the wiring harness through physical and/ or electromagnetic interference with the sub-systems.
[00018] Unwanted vibrations also directly affect the vehicle drivability condition.
[00019] The location of the ISG controller in the vehicle also should be such that the ISG controller is not affected by heat emanated by the sub-systems and surrounding parts that may adversely affect the performance of the ISG controller. Further, the ISG controller should not be affected due to entry of water to avoid circuit damages due to short circuiting, etc.
[00020] The ISG controller unit mounting should be stable to avoid any unwanted vibrations which directly effects the vehicle drivability condition.
[00021] Ideally, the two wheeled vehicles should be standing upright. However, there is always small amount of unbalanced weight on either the right-hand side or on the left-hand side of the vehicle. Because of which, the two-wheeled vehicle tends to lean either on the right-hand side or the left-hand side depending on the unbalanced weight on that respective side of the vehicle.
[00022] The location and mounting of the ISG controller in the vehicle should be such that the vehicle riding is not affected due to any such imbalance.
[00023] Therefore, there is a need for an improved layout and mounting configuration of an ISG controller which provides stable mounting of the ISG controller along with better accessibility location for the service in the vehicle layout that does not affect balance of the vehicle while overcoming all problems cited above and other problems of known art.
[00024] The present subject matter provides an improved vehicle layout configured to provide stable mounting of the ISG controller and includes pre-defined space to accommodate one or more wiring harness.
[00025] According to an embodiment of the present invention, a straddle-type vehicle includes a power source to drive the vehicle. The power source includes a sub-power source. For example, the power source is an engine assembly and the sub power source is an integrated-stater generator (ISG). The power source is controlled by one or more controllers. The one or more controllers include a first controller, being an electronic control unit (ECU) and a second controller. The second controller is for example, an ISG controller and the first controller is configured to control the power source.
[00026] In an embodiment, the power source is disposed at a rear portion of the vehicle. The power source is disposed at rear central portion of the vehicle in left-right direction. The second controller is disposed in front of the power source. The second controller and the power source are disposed along a longitudinal axis. The longitudinal axis is passing through the lateral center of the vehicle in a front-rear direction when viewed from a plan view.
[00027] According to an embodiment of the present invention, the first controller is disposed at a close proximity to the power source such that a transverse axis is passing between the first controller and the power source, such that, at least one side surface of the substantially rectangular first controller is disposed in a substantially orthogonal orientation to the axis of the drive shaft of the power source. In an aspect, the first controller is disposed on any one of rear frames of a pair of rear frames of the frame assembly of the vehicle. In another aspect, the first controller is additionally disposed above the power source.
[00028] According to an embodiment of the present invention, at least one of a first controller and the second controller is disposed at a rear end and rearwardly to the pair of rear frames of the frame assembly. In an aspect, the second controller is mounted to the rear end of the pair of rear frames.
[00029] In another aspect of the present invention, an end portion of the pair of rear frames is connected across by a cross member. The cross member is configured to support at least one of the first controller and the second controller.
[00030] In yet another aspect of the present invention, the cross member is configured to support a support structure. The at least one of a first controllers and the second controller is mounted to the support structure.
[00031] In yet another aspect of the present invention, the cross member disposed across and connecting the end portion of the pair of rear frames is configured to support a mounting portion of a rear fender of the vehicle. The rear fender is disposed above the rear wheel, partially covering the rear wheel. The at least one of the first controller and the second controller is mounted on the rear fender.
[00032] The second controller is oriented and mounted at the rear end of the rear frames, such that the routing of the wiring harness joining to one or more couplers of the second controller and to other systems including the power source, the first controller etc. is hassle free. The vehicle layout of the straddle type vehicle as per the present invention provides pre-defined space for routing of the wiring harness through the length and width of the vehicle. The wiring harness is laid such that it does not interfere with the sub-systems and other parts in the vehicle.
[00033] The imbalance of the vehicle is prevented to a great extent by disposing the power source and the second controller along the longitudinal axis passing through the center of the vehicle in front-rear direction when viewed from the plan view. Most of the weight in the vehicle is concentrated along the longitudinal axis by preventing any offset of the systems/sub-systems towards right side or left side of the vehicle. This enables to keep the vehicle upright instead of having lean or imbalance forces acting on the vehicle.
[00034] Further, the heat dissipation of the first controller and the second controller is efficiently carried out by locating the first controller and the second controller at the rear most end of the vehicle. The traversing direction of the atmospheric air in the vehicle, during vehicle running condition, is from the front of the vehicle towards the rear of the vehicle. The heat generated on account of working of the first controller or the second controller at the rear end of the vehicle is carried away by the traversing atmospheric air. The first controller and the second controller are considerably away from the power source in the vehicle layout. Therefore, the heat emanated by the power source does not affect the first controller and the second controller. As a result, a more reliable and stable functionality of the first controller and the second controller is obtained.
[00035] In another aspect, the rear most portion of the pair of rear frames is the sturdiest portion of the frame assembly. The rear portion is unaffected by any vibrations, as the rear portion does not support any oscillating components that tend to produce vibrations. Therefore, a stable mounting of the first controller or the second controller is obtained.
[00036] The further explanation to the above said advantages of the present invention is provided in the detailed description of the figures below. The present subject matter is further described with reference to accompanying figures. It should be noted that the description and figures merely illustrate principles of the present subject matter. Various arrangements may be devised that, although not explicitly described or shown herein, encompass the principles of the present subject matter. Moreover, all statements herein reciting principles, aspects, and examples of the present subject matter, as well as specific examples thereof, are intended to encompass equivalents thereof.
[00037] Figure 1 depicts a side view of an exemplary saddle-type vehicle 100, in accordance with an embodiment of the present subject matter. The vehicle 100 has a frame assembly 105 (schematically shown with dotted lines) that includes a front frame 106, a main frame member 107 extending rearwardly downward from the front frame 106. The main frame member 107 may comprise one or more main frame(s), and pair of rear frames 108 extending inclinedly rearward from a rear portion of the main frame 107. In the present embodiment, the vehicle 100 includes a step through portion 109 defined by a central frame member 111 of the frame assembly 105. However, the aspects of the present subject matter are not limited to the depicted layout of the vehicle 100.
[00038] Further, a handlebar assembly 110 is connected to a front wheel 115 through one or more front suspension(s) 120. A steering shaft (not shown) connects the handlebar assembly 110 to the front suspension(s) 120 and the steering shaft is rotatably journaled about the front frame 106. A power source 405, for example an engine assembly is mounted to the frame assembly 105. The power source 405 may also include a traction motor either hub mounted or mounted adjacent to the engine assembly. In the depicted embodiment, the power source 405 is disposed below at least a portion of the pair of rear frames 108. However, in an alternative embodiment, the power unit may be fixedly disposed towards front and below the main frame 107. The power source 405 is functionally connected to a rear wheel 130 through a transmission system (not shown). The vehicle 100 may include one or more rear wheel(s). Also, the vehicle 100 includes an exhaust system that helps in dissipation of exhaust gasses from the power source 405. The exhaust system includes a muffler 135 mounted to the vehicle 100. In the depicted embodiment, the muffler 135 is disposed towards one lateral side of the vehicle 100.
[00039] Further, the rear wheel 130 is connected to the frame assembly 105 through one or more rear suspension(s) (not shown). In the depicted embodiment, the power source 405 is swingably mounted to the frame assembly 105 through a toggle link (not shown) or the like. A seat assembly 140 is supported by the frame assembly 105 and is disposed rearward to the step-through portion 109.
[00040] Further, the vehicle 100 includes a front fender 155 covering at least a portion of the front wheel 115. In the present embodiment, a floorboard 145 is disposed at a step-through portion 109 and is supported by the main frame 107 and a pair of floor frame portions (not shown). In an embodiment, a fuel tank (not shown) is disposed below the seat assembly 140 and behind the utility box. A rear fender 160 is covering at least a portion of the rear wheel 130. The vehicle 100 comprises of plurality of electrical/electronic components including a headlight 165, a tail light (not shown), a battery (not shown), a transistor-controlled ignition (TCI) unit (not shown), an alternator (not shown), a starter motor (not shown). Further, the vehicle 100 may include a synchronous braking system, an anti-lock braking system.
[00041] The vehicle 100 comprises plurality of panels that include a front panel 170 disposed in an anterior portion of the front frame 106, a leg-shield 171 disposed in a posterior portion of the front frame 106. A rear panel assembly 172 includes a right-side panel and a left side panel disposed below the seat assembly 140 and extending rearward from a rear portion of the floorboard 145 towards a rear portion of the vehicle 100. The rear panel assembly 172 encloses a utility box disposed below the seat assembly 140. Also, the rear panel assembly 172 partially encloses the power source 405. Also, the muffler 135 of the exhaust system is coupled to exhaust side of the engine assembly and in an implementation the muffler 135 is disposed towards one lateral side of the vehicle 100.
[00042] Figure 2 illustrates a right-side rear perspective view of the straddle-type vehicle. According to an embodiment of the present invention, the straddle type vehicle includes the pair of rear frames 108. A rear end of the pair of rear frames 108 is connected across by a cross member 202. The cross member 202 is configured to structurally support the second controller 201.
[00043] According to one aspect of the present subject matter, the space in between the rear end of the pair of rear frames 108, at the rear of the vehicle is configured for packaging of the second controller 201. The second controller 201 is disposed along a vehicle central axis 201c. The central axis 201c is intersecting a vehicle central longitudinal plane at a predetermined angle ?. The predetermined angle ? is substantially equal to 90 degrees. The vehicle central longitudinal plane is an imaginary axis passing through the center of the vehicle in a front-rear direction. The central axis is also an imaginary axis passing axially through the center of the second controller.
[00044] The rear end portion 108r of the pair of rear frames 108 is left free and does not support any other component/part of the vehicle. The rear end portion 108r of the pair of rear frames 108 is left undisturbed by any vibrations. Therefore, the rear end portion 108r of the pair of rear frames provides stable mounting for the second controller 201. The second controller 201 is retained in its desired angle and location as mounted during the assembly process in the vehicle.
[00045] The second controller 201 is located at a close proximity to and mounted rearwardly to the rear end of the pair of rear frames 108 such that, the rear end of the vehicle is effectively designed in a compact manner to achieve a compact and sleek design of the vehicle. As per an embodiment, an inclination of the second controller 201 with respect to the vehicle central longitudinal axis, at desired angles can still be achieved in the configured space without interfering with the body panels and other surrounding components/parts. Therefore, no modification of the body panels is required according to the present subject-matter, which enables to achieve good aerodynamic profile of the rear body panel as well as good aesthetics.
[00046] Further, the second controller 201 can be dismantled whenever required without disturbing the surrounding parts. Likewise, whenever, the surrounding parts are to be accessed, the mounting of the second controller 201 is not disturbed. This way, a stable mounting of the second controller 201 is obtained as they are not disturbed due to interference with surrounding parts/sub-systems.
[00047] Figure 3 illustrates a rear perspective view of a rear side of the saddle type vehicle. According to an embodiment of the present invention, the second controller 201 is detachably attached to the cross member 202 of the frame assembly. The cross member 202 is configured to include one or more receiving portions 202r configured to receive one or more attaching means 202m that enable mounting of the second controller 201 to the cross member 202. In an embodiment, the one or more receiving portions 202r are configured to extend downwardly of the cross member 202. The one or more receiving portions 202r on the cross member 202 enable multi-point mounting of the second controller 201 at various portions of the second controller 201. The mounting of the second controller 201 at various portions with multi-point or plurality of mounting means eliminates undesirable overhang of the second controller 201 thereby achieving a stable and vibration resistant mounting which is critical for error free performance of the controller.
[00048] Figure 4 illustrates a rear perspective view of the straddle type vehicle as per an alternate embodiment. As per an aspect of the present subject matter, the second controller 201 is mounted to a support structure 407. The support structure 407 is mounted to the cross member 202. The second controller 201 is mounted to the support structure 407 at multiple portions to obtain stable mounting.
[00049] In another embodiment, the second controller 201 is mounted on the rear fender 160. The rear fender is mounted to the cross member 202 through a rear fender mounting portions 160m. The rear fender mounting portion 160m is mounted to the cross member 202 at multiple portions. This way, the rear fender 160 is support at multiple portions on the cross member 202 and due to which, the vibrations passing through the rear fender 160 during vehicle running condition does not affect or loosen the mounting of the rear fender 160 with the cross member 202. The so obtained stable mounting of the rear fender 160 at the mounting portion of the rear fender 160f provides stability to the second controller 201 mounted on the rear fender 160.
[00050] Figure 5 illustrates a right-side view of the vehicle layout of the straddle type vehicle according to an embodiment of the present invention. In an embodiment, a power source 405 is configured to propel the vehicle. The power source 405 is controlled by a first controller 302. The first controller 302 is mounted to one of a side frame 108 of the pair of rear frames (shown in figure 1). The first controller 302 is configured to control the sub-power source 401a. Further, the second controller 201 includes one or more couplers 304 configured to receive various inputs through a first wiring harness 402 and a second wiring harness 303. The first wiring harness 402 is routed above the second controller 201 and along the cross member 202 in the pre-configured space at the rear end of the vehicle and formed above the second controller 201. The first wiring harness 402 is protected by routing along a right-side rear frame 108a of the pair of rear frames 108 and is also covered by a side panel (not shown) thereby achieving a secure and safe wiring harness design. The side panel prevents entry of water particles below the second controller 201 and thereby preventing short circuiting of the first wiring harness that is connected to the one or more couplers 304.
[00051] In an embodiment, a sub-power source 401a is a part of the power source 405. The first controller 302 is configured to control the sub-power source 401a.
[00052] Further, in an embodiment the one or more couplers 304 are provided on the second controller 201 on a same side as the side in the vehicle which comprises the first controller 302. The first wiring harness 402 routed between the one or more couplers 304 and the power source 405 is short while ensuring the first controller 302 being disposed in close proximity of the power source 405 as well as configuring a secure, safe and stable layout of the auxiliary energy source of the vehicle. Further, the second controller 201 is oriented and mounted on a right-side rear frame 108a of the pair of rear frames 108 such that the one or more couplers 304 of the second controller 201are easily accessible and do not interfere with the surrounding parts. This way, a third wiring harness 401 routed between the power source 405 and the first controller 302 is not subjected to stress, which otherwise would have been caused due to interference with the surrounding sub-systems. All the above said first wiring harness 402, second wiring harness 303 and the third wiring harness 401 do not include any sharp bends and hence, the communication speed between the sub-systems through the mentioned wiring harness is at optimum speed. The hassle-free routing as well as ease of service of the wiring harness is facilitated by the vehicle layout of the straddle type vehicle.
[00053] In an embodiment, the first controller 302 is disposed on the same side as that of the one or more couplers 304 in the vehicle. In an embodiment, the one or more couplers 304 are disposed on the right side of the second controller 201. The first controller 302 is also disposed on the right side of the vehicle, such that a simpler routing between the second controller 201 and the one or more couplers 304 is obtained.
[00054] In an embodiment, the first wiring harness 402, the second wiring harness 303, and the third wiring harness 401 are routed on any one of a right side and a left side of the vehicle and the first controller 302 is disposed on the same side as that of the first wiring harness 402, the second wiring harness 303, and the third wiring harness 401. The above said configuration provides for improved, simpler and cost-effective routing of the wiring harness.
[00055] In another embodiment of the present invention, the second controller 201 is configured with plurality of fins 404. The plurality of fins enhances heat dissipation from the surface of the second controller 201. According to the present invention, during vehicle running condition, the atmospheric 406 traverses in the vehicle from front to rear direction. The heat dissipated from all the components in the vehicle as well as the second controller 201 is carried away and exited from the rear end of the vehicle 100. Therefore, the heat dissipation is effectively conducted at the proposed location of the second controller 201. Further, the second controller 201 is substantially away from the power source 405, because of which, the heat generated by the power source 405 does not affect the functionality of the second controller 201. Therefore, a reliable functionality of the second controller 201 is obtained.
[00056] Figure 6 illustrates a plan view of the straddle type vehicle according to an embodiment of the present invention. The power source 405 is configured to propel the vehicle 100. The first controller 302 is configured to control the power source 405 and the second controller 201 is configured to control a generator, for example, an integrated starter generator (ISG) of the power source 405.
[00057] In an embodiment, the second controller 201 and the power source 405 are disposed substantially along a longitudinal axis LM. The first controller 302 is disposed at a close proximity to the power source 405. The first controller 302 is disposed along a transverse axis TR such that the transverse axis TR is a virtual line intersecting substantially orthogonally the longitudinal center of the power source 405 as well as the first controller 302. The longitudinal axis LM is passing through center of the vehicle 100 in a front-rear direction and the transverse axis TR is intersecting the longitudinal axis LM at an angle substantially normal to the axis LM. In the present embodiment the angle between the longitudinal axis LM and the transverse axis TR joining the power source 405 and the first controller 302 is substantially equal to zero. In the present embodiment, the first controller 302, the second controller 201 and the one or more auxiliary energy sources 203 are disposed along the same axis, which is the longitudinal axis LM. The longitudinal axis LM is passing through the center of the vehicle in a front-rear direction when viewed from a plan view.
[00058] In the present embodiment, the first controller 302 is disposed above the power source 405 and substantially at the lateral center of the vehicle as well as substantially in vicinity of the transverse axis TR in left-right direction (L-H). The power source 405 is disposed at the lateral center of the vehicle at a rear portion of the vehicle. The power source 405 is functionally coupled to a sub-power source 401a as shown in Figure 4, the sub-driving source 401a is a part of the power source 405, wherein the sub-power source 401a is configured to be controlled by the second controller 201. In an embodiment, the second controller 201 is disposed in front of said front frame 106 and mounted to the front frame 106.
[00059] The first controller 302 and the second controller 201 are configured to receive power from the one or more auxiliary energy source 203.
[00060] In an embodiment, the first controller 302 is disposed on a right-side rear frame 108a of the pair of rear frames 108. In another embodiment, the first controller 302 is disposed on a left-side rear frame 108b of the pair of rear frames 108.
[00061] Althcough the subject matter has been described in considerable detail with reference to certain embodiments thereof, other embodiments are possible. It is to be understood that the aspects of the embodiments are not necessarily limited to the features described herein.

Reference Numerals:
100 vehicle
105 frame assembly
106 front frame
107 main frame member
108 pair of rear frames
108a right-side rear frame
108b left-side rear frame
109 step through portion
110 handlebar assembly
111 central frame member
115 front wheel
120 one or more front suspensions
130 rear wheel
135 muffler
140 seat assembly
145 floor board
155 front fender
165 headlight
170 front panel
171 leg shield
172 rear panel assembly
201 second controller
203 one or more auxiliary energy sources

202m one or more mounting members
302 first controller
303 second wiring harness
401 third wiring hanress
402 first wiring harness
405 power source
401asub-power source
404 one or more fins
405 power source
406 one or more wiring harness holding members
LM longitudinal axis
TR transverse axis