This invention relates to a motor mounting system for a hybrid motor vehicle,
In a conventional three-wheeler, rear wheels receive power only from the engine. In an electric three-wheeler, drive wheels receive power from the motor alone. In a hybrid vehicle, proposed in this art, it can receive power both from engine and motor. For this a motor is to be integrated to the power train.
The integration of the motor to the power train should satisfy these requirements.
Engine and motor should be able to drive the vehicle independently as well as simultaneously.
The motor should not drive back the engine when it is driving the wheels.
Mounting of the motor to the power train should be done with minimal changes to the existing vehicle layout.
Mounting the motor on the engine side causes a part of the power, delivered by motor, to be lost in the transmission elements like gear box, differential among others.
Mounting the motor on the engine side also causes !ot of changes in the power train layout.

Mounting of the motor on the wheel side is therefore to be preferred to mounting of the motor on the engine side.
Reference will now be made to the accompanying drawings which illustrate by way of example, and not by way of limitation, an embodiment of this invention.
In the embodiment illustrated Ref fig 6 the rear wheels get the drive2 from engine, while the front wheel get the drive2 from motor. There are no changes in the rear wheel arrangement, however the front wheel arrangement had to be modified so as to accommodate the motor. The motor has mainly two parts, rotor (11) and the stator (12). The stator (12) houses the stator windings and is mounted over the fixed stator shaft (18). The stator shaft supports the left end cover (15b) as well as the right end cover (15a) through two bearings (5). The stator shaft is connected to the vehicle body through two trailing arm (14) and steering column. The rotor (11) houses plurality of permanent magnets mounted on its inner surface The rotor is connected to the left end cover (15b) as well as to the right end cover (15a) through a plurality of bolts. The rotor is again connected to the wheel rim (7) through a plurality of bolts and nuts, such that rotor, left and right end covers and the wheel rim (7) will rotate as a single assembly. The tyre (8) along with tube (9) is mounted over the periphery of the wheel rim (7).
The rotational power from the engine is given to the differential' through a clutch and gearbox and from this it is given to the muff cup. From the

muff cup the drive2 is transferred to the drive axle and from the drive axle to the wheel rim and eventually to the rear wheels. Since the stator windings are not energized, rotor of the motor will be freely rotating along with the front wheel.
Whenever the wheels are to be driven by an electric motor, then the stator windings wounded over the stator (12) are energized by connecting it to the battery. The resulting magnetic field generated by the stator windings interacts with the magnetic field generated by the permanent magnets mounted on the rotor (11) and will cause the rotor magnets to move and there by rotating the rotor (11). The rotor (11), connected to the wheel rim (7) through a plurality of nuts and bolts, transfers this drive2 to the wheel rim (7) and eventually to the wheels While doing so the stator (12) will experience an opposing torque which will tend to rotate the stator (12) in the opposite direction. This opposite rotation of the stator (12) Is prevented by the fixed stator shaft (18), which in turn is connected to the vehicle body through the trailing arm (14).
The drive2 from the engine is given to the differential through a clutch and gearbox and from which it is given to the muff cup. From the muff cup drive2 is transferred to the drive axle and from the drive axle to the wheel rim and eventually to the rear wheels. The drive2 from the rotor (11) of the motor is first transferred to the wheel rim (7) through a plurality of nuts and bolts. The wheel rim (7) In turn transfers this drive2 to the wheels.

Whenever the vehicle brakes, the momentum of the vehicle will in turn drive2 the wheels. Wheels will transfer this drive2 to the wheel rim (7). Wheel rim (7), connected to the rotor (11) through a plurality of nuts and bolts, transfers this drive2 to the rotor (11) of the motor. As the rotor (11) rotates, the magnets mounted over the rotor (11) induces a current in the stator windings. This current induced in the stator windings is fed to the battery through a converter. The converter ensures that the current fed to the battery during regeneration is not exceeding the maximum limit of charging current.
In a variation of the said embodiment ref fig 10 which is a further refinement the front wheel is supported by means of a single trailing arm similar to the existing vehicle. Here in order to accommodate the motor, the drive axle length is extended and over the extended length two spacers (19a)&(19b) are placed The drive axle (6), spacers (I9a)&(19b) and the right end cover (15a) of the motor are connected together by means of a plurality of bolts. Here stator (12) of the motor Is mounted over the housing axle (4), while the rotor (11) housing the magnets are connected to the drive axle (6) through the right end cover (15a). Wheel rim (7) is bolted to the drive axle (6). The drive axle (6) supports the wheels as well as the rotor (11) of the motor. The drive axle in turn is supported by the housing axle (4) through two bearings. Here the conventional drum brake system is replaced by a disc brake system with the disc (20) connected to the left end cover (15b) through a plurality of bolts, while the caliper (21) is connected to the trailing arm. In pure electric mode of operation, drive from the rotor (11) is transferred to the wheels through right end cover (15a), spacers (19a)&(19b), wheel rim

(7). The transfer of power in pure engine mode, power assist and regeneration mode remains the same as that of the above-mentioned embodiment. The reversal of drive from motor to engine is prevented by means of a one way clutch incorporated between engine and motor.
In yet another variation of the embodiment (refer fig 9) which is a further refinement of the above-mentioned embodiment, the wheel rim (7) is modified so as to create some space to accommodate the motor. Here instead of two spacers, only one spacer (19) is used. In this embodiment, the left end cover is eliminated and the wheel rim (7) itself is acting as the left end cover. Here the rotor (11) is connected to the wheel rim through a plurality of bolts. The disc (20) is connected to left end cover (15b) through a plurality of bolts. The caliper (21) is mounted on the front trailing arm. Stator (12) of the motor is mounted over the housing axle (4). The stator is prevented from rotating by known means, such as, for example, a key provided over the housing axle (4). Remaining parts and their arrangement are kept same as that of the above-mentioned embodiment. The transfer of power in pure engine mode, pure electric mode, power assist and regeneration mode remains the same as that of the above-mentioned embodiment.

We Claim:
1.A motor mounting system for a hybrid motor vehicle comprising an engine and a motor, the motor being mounted on the wheel side of the vehicle, the rear wheels of the vehicle being driven by the engine while the front wheel is driven by the motor, the said motor accommodating the stator and the rotor, the stator housing the stator windings and being mounted over a fixed stator shaft supporting the left end cover as well as the right end cover through two bearings, said stator shaft being connected to the vehicle body through two trailing arms and the steering column, the rotor housing a plurality of permanent magnets mounted on its inner surface, the rotor being connected to the left end cover as well as to the right end cover, the rotor being also connected to the wheel rim such that the rotor, left and right end covers and the wheel rim rotate as a single assembly.
2. A motor mounting system as claimed in Claim 1 wherein the front wheel is supported by means of a single trailing arm, the drive axle length being extended with two spacers being placed over the extended length, said spacers and the right end cover of the motor being connected together, the stator of the motor being mounted over the housing axle, while the rotor housing the magnets are connected to the drive axle through the right end cover, the wheel rim being bolted to the drive axle and the conventional drum brake system being replaced by a disc brake system.

3.A motor mounting system as claimed in Claim 1 or Claim 2 wherein the stator of the motor is mounted over the housing axle, the stator being prevented from rotating by known means, such as, for example, a key provided over the housing axle.
4. A motor mounting system for a hybrid motor vehicle substantially as herein described with reference to, and as illustrated in, the accompanying drawings.