[001] This disclosure relates generally to electric vehicles, and more particularly to modular electrical harness for electric vehicles.

BACKGROUND
[002] Electric vehicles have been around for some decades now and have found greater popularity amongst masses lately. The electric vehicles, owing to implementing a large number of electrical components and connections, include numerous wire assemblies, also called electrical harnesses. For example, the electrical harness of the electric vehicle includes a variety of wires, couplers, terminals, insulation, and shielding. Due to these reasons and further due to the long lengths and overall weight of the harness, it becomes difficult to manage the electrical harness assembly. The logic of the harness is crucial for the smooth working of the electrical fitments and reliability in time. There are three types of electrical harnesses namely, derivative harness, modular harness, and custom harness. In the devices which are built in small or on request have a custom harness. The devices that are built specifically to cater the services of a limited domain or functionality have modular harness. The derivative harness is used when there are multiple variations of a single device. However, maintaining the complexity of an electrical harness poses multiple challenges especially when there are large number of derivatives to a harness. As a result, overall time taken for the assembly of the electrical harnesses is long, which further results in poor performance on the assembly line and unnecessary loss of capital.

SUMMARY
[003] In one embodiment, an electrical harness assembly is disclosed. The electrical harness assembly may include a root harness and at least one branch harness. The at least one branch harness may include a first sub-branch harness and a second sub-branch harness. The at least one branch harness may be electrically coupled with the root harness via the first sub-branch harness. The second sub-branch harness may be electrically coupled to the first sub-branch harness. The electrical harness assembly may further include a plurality of leaf harnesses, each of the plurality of leaf harnesses being electrically coupled to the root harness.
[004] In another embodiment, another electrical harness assembly is disclosed. The electrical harness assembly may include a chassis-control harness, a manikin harness, a dashboard harness, a charging control harness, a battery module harness, a motor control harness, and a rear harness. The dashboard harness may be electrically coupled to the manikin harness. The manikin harness may be electrically coupled to the chassis-control harness. The chassis-control harness may be further electrically coupled to each of the charging control harness, the battery module harness, the motor control harness, and the rear harness.
[005] In yet another embodiment, another electrical harness assembly is disclosed. The electrical harness assembly may include a chassis-control harness and at least one branch harness. The at least one branch harness may include a manikin harness and a dashboard harness. The at least one branch harness may be electrically coupled with the chassis-control harness via the manikin harness. The dashboard harness may be electrically coupled to the manikin harness. The electrical harness assembly may further include a plurality of leaf harnesses. Each of the plurality of leaf harness may be electrically coupled to the root harness. The plurality of leaf harnesses may include a charging control harness, a battery module harness, a motor control harness, and a rear harness.
[006] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.

BRIEF DESCRIPTION OF THE DRAWINGS
[007] The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate exemplary embodiments and, together with the description, explain the disclosed principles.
[008] FIG. 1 is a schematic diagram of an electrical harness assembly, in accordance with some embodiments of the present disclosure.
[009] FIG. 2 is a schematic diagram of an electrical harness assembly (corresponding to the electrical harness assembly of FIG. 1), in accordance with some embodiments of the present disclosure.
[010] FIG. 3 is a schematic view of a vehicle, in accordance with some embodiments of the present disclosure.
[011] FIG. 4 is a schematic view of the vehicle (of FIG. 3) implementing the plurality of electrical harnesses, in accordance with some embodiments of the present disclosure.

DETAILED DESCRIPTION
[012] Exemplary embodiments are described with reference to the accompanying drawings. Wherever convenient, the same reference numbers are used throughout the drawings to refer to the same or like parts. While examples and features of disclosed principles are described herein, modifications, adaptations, and other implementations are possible without departing from the spirit and scope of the disclosed embodiments. It is intended that the following detailed description be considered as exemplary only, with the true scope and spirit being indicated by the following claims. Additional illustrative embodiments are listed below.
[013] The present disclosure provides an electrical harness assembly for an electric vehicle. The electrical harness assembly is divided into multiple harnesses, for the ease of assembly. For example, the electrical harness assembly may be divided into seven harnesses that may include a dashboard harness, a manikin harness, a chassis-control harness, a charging control harness, a battery module harness, a rear harness, and a motor control harness. The dashboard harness can be connected to the manikin harness with two connectors with 16-pin and 9-pin configurations, respectively. The chassis-control harness can be then connected to this harness with one 16-pin, one 2-pin, and one 6-pin connector. There are three electrical harnesses that connect to the chassis-control harness. These three electrical harnesses include the motor control harness that can be connected with a 8-pin connector, the charging control harness that can be connected with three 2-pin connectors, and the battery module harness that can be connected with a 12-pin connector. The rear harness can be connected to chassis-control harness with one 6-pin connector.
[014] The electrical harness assembly is modular in nature and provides for easy modification or replacement of any of the seven electrical harnesses, when required, without requiring the overall design of the electrical harness assembly to be modified. Any of the seven harnesses can be either replaced with the new or modified, without affecting the remaining of the harnesses. This provides for easy serviceability and troubleshooting of the electrical harness assembly, at various levels of technical service. Further, the number of connected components in the individual harnesses are reduced. As a result of this, it is easy to incorporate or assemble any derivative design in the electrical harness assembly. Further, easy serviceability is achieved for the electrical harness assembly, due to limited logic connections. Furthermore, there is reliability factor, since there are less interdependent components in each harness.
[015] Further, the harnesses are connected (electrically coupled) with each other using electrical couplers instead of splices or nodes. The electrical couplers provide for minimum junction loss. Further, the electrical couplers are easy to manufacture. Furthermore, the electrical couplers are kept at least 50 millimeters (mm) apart from each other, thereby leading to large wire lengths and voltage drop across the adjacent splices. Moreover, there is a possibility of water penetration in the splices where heat shrink tube is absent, that can lead to short-circuit accidents. By using electrical couplers, this problem is overcome. The electrical couplers are super sealed connectors that can withstand a 1 bar gauge pressure.
[016] Thus, the electrical harness assembly may include seven different child harnesses, that can be combined to form the electrical harness assembly. The connection of the harnesses with each other is via electrical couplers (connectors). So, the damaged harness part can be replaced instead of changing the whole electrical harness assembly. The reliability of all the (child) harnesses increases due to less number of control circuits and connections, as compared to spline or node-based connectors.
[017] Referring to FIG. 1, a schematic diagram of an electrical harness assembly 100 is illustrated, in accordance with some embodiments of the present disclosure. By way of an example, the electrical harness assembly 100 may be implemented in an electric vehicle (not shown in FIG. 1), for example, a trailer, a car, etc.
[018] In some embodiments, as shown in FIG. 1, the electrical harness assembly 100 may include a root harness 102. The electrical harness assembly 100 may further include at least one branch harness 104. The at least one branch harness 104 may include a first sub-branch harness 104A and a second sub-branch harness 104B. It should be noted that the least one branch harness 104 may be electrically coupled to the to the root harness 102, via one of the first sub-branch harness 104A and the second sub-branch harness 104B. For example, as shown in FIG. 1, the at least one branch harness 104 may be electrically coupled with the root harness 102 via the first sub-branch harness 104A. As such, the second sub-branch harness 104B may be electrically coupled to the first sub-branch harness 104A.
[019] The electrical harness assembly 100 may further include a plurality of leaf harnesses. In the example embodiment shown in FIG. 1, the electrical harness assembly 100 includes the plurality of leaf harnesses that include four leaf harnesses – a first leaf harness 106, a second leaf harness 108, a third leaf harness 110, and a a fourth leaf harness 112.
[020] In some embodiments, the second sub-branch harness 104B may be electrically coupled to the first sub-branch harness 104A using a first connector assembly 114. For example, the first connector assembly 114 may include one 16-pin connector and one 9-pin connector. The first sub-branch harness 104A may be electrically coupled to the root harness 102 using a second connector assembly 116. For example, the second connector assembly 116 may include one 16-pin connector, one 2-pin connector, and one 6-pin connector.
[021] The root harness 102 may be electrically coupled to the first leaf harness 106 (of the plurality of leaf harness), using a third connector assembly 118. For example, the third connector assembly 118 may include one 8-pin connector. The root harness 102 may be electrically coupled to the second leaf harness 108 (of the plurality of leaf harness), using a fourth connector assembly 120. For example, the fourth connector assembly 120 may include one three 2-pin connectors. The root harness 102 may be electrically coupled to the third leaf harness 110 (of the plurality of leaf harness), using a fifth connector assembly 122. For example, the fifth connector assembly 122 may include one 12-pin connector. The root harness 102 may be electrically coupled to the fourth leaf harness 112 (of the plurality of leaf harness), using a sixth connector assembly 124. For example, the sixth connector assembly 124 may include one 6-pin connector.
[022] In some embodiments, it should be noted that each of the above connectors may be an electrical coupler. In other words, each of the first connector assembly 114, the second connector assembly 116, the third connector assembly 118, the fourth connector assembly 120, the fifth connector assembly 122, the sixth connector assembly 124 may include electrical coupler. Each of these electrical couplers may be a super sealed connector having a 1 bar gauge pressure withstanding.
[023] By way of an example, the root harness 102 may be a chassis-control harness, the first sub-branch harness 104A may be a manikin harness, the second sub-branch harness 104B may be a dashboard harness, the first leaf harness 106 may be a charging control harness, the second leaf harness 108 may be a battery module harness, the third leaf harness 110 may be a motor control harness, and the fourth leaf harness 112 may be a rear harness.
[024] Referring now to FIG. 2, a schematic diagram of an electrical harness assembly 200 (corresponding to the electrical harness assembly 100) is illustrated, in accordance with some embodiments of the present disclosure. By way of an example, the electrical harness assembly 200 may be implemented in an electric vehicle, for example, a trailer, a car, etc.
[025] In some embodiment, the electrical harness assembly 200 may include a plurality of harnesses. The plurality of harnesses may include a chassis-control harness 202, a manikin harness 204, a dashboard harness 206, a charging control harness 208, a battery module harness 210, a motor control harness 212, and a rear harness 214. The dashboard harness 206 may be electrically coupled to the manikin harness 204. Further, the manikin harness 204 may be electrically coupled to the chassis-control harness 202. Further, in some embodiments, the chassis-control harness 202 may be electrically coupled to each of the charging control harness 208, the battery module harness 210, the motor control harness 212, and the rear harness 214.
[026] In some embodiments, as shown in FIG. 2, the manikin harness 204 may be electrically coupled to the chassis-control harness 202, using a first connector assembly 216. For example, the first connector assembly may include one 16-pin connector, one 2-pin connector, and one 6-pin connector. The dashboard harness 206 may be electrically coupled to the manikin harness 204, using a second connector assembly 218. For example, the second connector assembly 218 may include one 16-pin connector and one 9-pin connector. The chassis-control harness 202 may be electrically coupled to the charging control harness 208, using a third connector assembly 220. For example, the third connector assembly 220 may include one 8-pin connector. The chassis-control harness 202 may be electrically coupled to the battery module harness 210, using a fourth connector assembly 222. For example, the fourth connector assembly 222 may include three 2-pin connectors. The chassis-control harness 202 may be electrically coupled to the motor control harness 212, using a fifth connector assembly 224. For example, the fifth connector assembly 224 may include one 12-pin connector. The chassis-control harness 202 may be electrically coupled to the rear harness 214, using a sixth connector assembly 226. For example, the sixth connector assembly 226 may include one 6-pin connector.
[027] In some example embodiments, a length of the dashboard harness 206 may be 3600 millimeters (mm). A length of the manikin harness 204 may be 2600 mm. A length of the chassis-control harness 202 may be 3650 mm. A length of the battery module harness 210 may be 3750 mm. A length of the charging control harness 208 may be 2800 mm. A length of the motor control harness 212 may be 1100 mm. A length of the rear harness 214 may be 3100 mm.
[028] In some embodiments, it should be noted that each of the above connectors may be an electrical coupler. In other words, each of the first connector assembly 216, the second connector assembly 218, the third connector assembly 220, the fourth connector assembly 222, the fifth connector assembly 224, the sixth connector assembly 226 may include electrical coupler. Each of these electrical couplers may be a super sealed connector having a 1 bar gauge pressure withstanding.
[029] Referring now to FIG. 3, a schematic view of a vehicle 300 is illustrated, in accordance with some embodiments of the present disclosure. For example, the vehicle 300 may be an electric vehicle. Further, the vehicle 300 may be a trailer, a cargo loader, a passenger car, etc.
[030] As shown in FIG. 3, the vehicle 300 may include an electrical harness assembly that includes a plurality of electrical harnesses. For example, the vehicle 300 may include the chassis-control harness 202 (represented by A-A’), the manikin harness 204 (represented by B-B’), the dashboard harness 206 (represented by C-C’-C”), the charging control harness 208 (represented by D-D’), the battery module harness 210 (represented by E-E’), the motor control harness 212 (represented by F-F’), and the rear harness 214 (represented by G-G’). The dashboard harness 206 may be electrically coupled to the manikin harness 204. Further, the manikin harness 204 may be electrically coupled to the chassis-control harness 202. Further, in some embodiments, the chassis-control harness 202 may be electrically coupled to each of the charging control harness 208, the battery module harness 210, the motor control harness 212, and the rear harness 214. FIG. 3 further indicates realistic positions of the plurality of harnesses from where they can be accessed and assembled. The plurality of harnesses is further explained via illustrative configurations, in conjunction with FIG. 4.
[031] Referring now to FIG. 4, a schematic view 400 of the vehicle 300 implementing the plurality of electrical harnesses is illustrated, in accordance with some embodiments of the present disclosure. As already mentioned above, the vehicle 300 may include the chassis-control harness 202 (represented by A-A’), the manikin harness 204 (represented by B-B’), the dashboard harness 206 (represented by C-C’-C”), the charging control harness 208 (represented by D-D’), the battery module harness 210 (represented by E-E’), the motor control harness 212 (represented by F-F’), and the rear harness 214 (represented by G-G’). The dashboard harness 206 may be electrically coupled to the manikin harness 204. Further, the manikin harness 204 may be electrically coupled to the chassis-control harness 202. Further, in some embodiments, the chassis-control harness 202 may be electrically coupled to each of the charging control harness 208, the battery module harness 210, the motor control harness 212, and the rear harness 214.
[032] As shown in FIG. 4, each of the plurality of electrical harnesses include one or more electrical wirelines, each electrical wireline forming a node. For example, the chassis-control harness 202 includes multiple electrical wirelines. The chassis-control harness 202 is electrically coupled to the manikin harness 204 via one of the electrical wirelines. Similarly, the chassis-control harness 202 is electrically coupled to the charging control harness 208 via one of the electrical wirelines. And is the same way, the chassis-control harness 202 is electrically coupled to each of the battery module harness 210 and the rear harness via one of the electrical wirelines. Further, the manikin harness 204 is electrically coupled to the dashboard harness via one of is electrical wirelines.
[033] It is intended that the disclosure and examples be considered as exemplary only, with a true scope and spirit of disclosed embodiments being indicated by the following claims.

We claim:

1. An electrical harness assembly comprising:
a root harness;
at least one branch harness, wherein the at least one branch harness comprises:
a first sub-branch harness; and
a second sub-branch harness,
wherein the at least one branch harness is electrically coupled with the root harness via the first sub-branch harness, and
wherein the second sub-branch harness is electrically coupled to the first sub-branch harness; and
a plurality of leaf harnesses, wherein each of the plurality of leaf harnesses is electrically coupled to the root harness.

2. The electrical harness assembly as claimed in claim 1, wherein the plurality of leaf harness comprises four leaf harnesses.

3. The electrical harness assembly as claimed in claim 1,
wherein the second sub-branch harness is electrically coupled to the first sub-branch harness, using one 16-pin connector and one 9-pin connector, respectively,
wherein the first sub-branch harness is electrically coupled to the root harness, using one 16-pin connector, one 2-pin connector, and one 6-pin connector, and
wherein the root harness is electrically coupled to:
a first leaf harness of the plurality of leaf harness, using one 8-pin connector,
a second leaf harness of the plurality of leaf harness, using three 2-pin connectors,
a third leaf harness of the plurality of leaf harness, using one 12-pin connector, and
a fourth leaf harness of the plurality of leaf harness, using one 6-pin connector.

4. The electrical harness assembly as claimed in claim 3, wherein each of the connectors is a coupler.

5. The electrical harness assembly as claimed in claim 3, wherein each of the connectors is a super sealed connector having a 1 bar gauge pressure withstanding.

6. An electrical harness assembly comprising:
a chassis-control harness,
a manikin harness,
a dashboard harness,
a charging control harness,
a battery module harness,
a motor control harness, and
a rear harness,
wherein the dashboard harness is electrically coupled to the manikin harness,
wherein the manikin harness is electrically coupled to the chassis-control harness, and
wherein the chassis-control harness is further electrically coupled to each of:
the charging control harness,
the battery module harness,
the motor control harness, and
the rear harness.

7. The electrical harness assembly as claimed in claim 6,
wherein the dashboard harness is electrically coupled to the manikin harness, using one 16-pin connector and one 9-pin connector, respectively,
wherein the manikin harness is electrically coupled to the chassis-control harness, using one 16-pin connector, one 2-pin connector, and one 6-pin connector, and
wherein the chassis-control harness is electrically coupled to each of:
the charging control harness, using one 8-pin connector,
the battery module harness, using three 2-pin connectors,
the motor control harness, using one 12-pin connector, and
the rear harness, using one 6-pin connector.

8. The electrical harness assembly as claimed in claim 6, wherein:
a length of the dashboard harness is 3600 millimetres (mm),
a length of the manikin harness is 2600 mm,
a length of the chassis-control harness is 3650 mm,
a length of the battery module harness is 3750 mm,
a length of the charging control harness is 2800 mm,
a length of the motor control harness is 1100 mm, and
a length of the rear harness is 3100 mm.

9. An electrical harness assembly comprising:
a chassis-control harness;
at least one branch harness, wherein the at least one branch harness comprises:
a manikin harness; and
a dashboard harness,
wherein the at least one branch harness is electrically coupled with the chassis-control harness via the manikin harness, and
wherein the dashboard harness is electrically coupled to the manikin harness; and
a plurality of leaf harnesses, wherein each of the plurality of leaf harness is electrically coupled to the root harness, wherein the plurality of leaf harnesses comprise:
a charging control harness,
a battery module harness,
a motor control harness, and
a rear harness.

10. The electrical harness assembly as claimed in claim 1,
wherein the dashboard harness is electrically coupled to the manikin harness, using one 16-pin connector and one 9-pin connector, respectively,
wherein the manikin harness is electrically coupled to the chassis-control harness, using one 16-pin connector, one 2-pin connector, and one 6-pin connector, and
wherein the chassis-control harness is electrically coupled to:
the charging control harness, using one 8-pin connector,
the battery module harness, using three 2-pin connectors,
the motor control harness, using one 12-pin connector, and
the rear harness, using one 6-pin connector.