Motor arranged between electric automobile and fork arm

Abstract

The mature motor technology and the automobile suspension technology are utilized, the emphasis is emphasized that a motor is installed on a steering knuckle arm of an automobile and arranged between automobile wheels and a suspension upper fork arm and a suspension lower fork arm, various technical combinations are formed, an original mature electric automobile half-shaft type power transmission line is adopted for improvement, the motor directly acts on the wheels, and the electric automobile is driven to rotate. The device is used for driving the vehicle to run and recovering kinetic energy for power generation.

Description

[0001] Technical Field: It relates to the fields of new energy electric vehicles and motor technology.

[0002] Background Art: Under the reality that in-wheel motors for vehicles are not yet popular and the improvement of the driving range of pure electric vehicles still depends on further breakthroughs in battery technology, the present invention utilizes mature modern motor technology and automotive suspension technology, and makes innovations in methods without changing the basic structure of electric vehicles, and proposes the "in-wheel motor between the electric vehicle and the fork arm" solution.

[0003] Summary of the Invention: Different from the in-wheel motors in the prior art, the present invention focuses on making improvements and combinations by installing the motor on the "knuckle arm" between the wheels of the electric vehicle and the upper and lower fork arms (also called swing arms) of the suspension, so that the motor directly acts on the wheels through the hub and the brake disc to drive the vehicle to travel or convert kinetic energy into electricity. And based on this, like the in-wheel motor, the power is distributed to each wheel to achieve the technical purpose of recovering kinetic energy for power generation and extending the driving range of pure electric vehicles.

[0004] Description of the Drawings: Figure 1 . Schematic diagram of the in-wheel motor between the fork arms Figure 2 . The following serial numbers represent the in-wheel motor between the fork arms and the names of its associated components: 1. Double-fork-arm type in-wheel motor device between the fork arms; 2. MacPherson type fork arm motor device; 3. Knuckle arm manufactured by disc type in the middle part; 4. Upper knuckle; 5. Lower knuckle; 6. Upper fork arm; 7. Lower fork arm; 8. Motor; 9. Hub; 10. Brake disc; 11. Wheel; 12. Shock absorber; 13. Motor rotor shaft also serving as a half shaft; 14. Hub bearing

[0005] Detailed Description of the Invention: The in-wheel motor between the fork arms is an innovative device that combines various technologies centered around the "knuckle arm". Under this definition, in order to install the motor, the part of the knuckle arm connected to the motor is designed in a disc shape. In this way, the electric motor is directly installed with screws on the inner side of the "knuckle arm" that can not only support the wheel, control the steering, but also connect to the suspension, and the motor rotor shaft is inserted into the hub installed on the outer side of the "knuckle arm" to serve as a half shaft at the same time. (Technically, the hub is a mechanical part specifically used to drive the brake disc and the wheel to rotate.) The torque generated when the electric motor rotates is transmitted through the hub to drive the brake disc and the wheel to rotate together to achieve the purpose of driving the vehicle to travel. If a generator is selected for installation, the power generated when the wheel slides passively can be transmitted back to the generator to recover kinetic energy for power generation, and thus it can become the "in-wheel motor between the fork arms". By improving and installing this in-wheel motor between the fork arms on the front and rear wheels of the car, the dual technical effects of the motor being able to drive and generate electricity on a car can be achieved in terms of application form.

[0006] Specific implementation method: The steering knuckle arm mainly used for wheel steering is actually a comprehensive technical connector. In addition to fixing the brake caliper, it also needs to be fixedly connected to the upper and lower control arms of the vehicle suspension through the upper and lower steering knuckles and the steering knuckle shaft. In this way, under the grip of the upper and lower control arms and the traction of the tie rod, the steering knuckle arm can rotate left and right. An opening is made at the center position on the inner side disc of the steering knuckle arm to install the motor, so that the motor is located between the upper and lower control arms. The splined shaft end of the rotor shaft that also serves as a half shaft passes through the hole and is docked with the hub installed in the bearing housing on the outer side of the steering knuckle arm, which has bearings and a key library and plays a role in driving the brake disc and the wheel to rotate. Then, several tightening screws extending from the hub pass through several screw holes on the brake disc and are fixedly connected to the wheel. (Basically, it follows the mature half shaft power transmission technology of sedans, but after improvement, the part inserted into the hub key library is no longer the half shaft, but the rotor shaft of the motor with splines that also serves as a half shaft.) In this way, a steering knuckle arm installed with a motor forms an attachment relationship with the upper and lower control arms of the vehicle suspension and a supporting relationship with the wheel. Thus, the motor is suspended between the upper and lower control arms of the vehicle and swings freely as the steering knuckle arm rotates. During the improvement, since the installation of the motor occupies the position of the shock absorber, a bottom-up improvement needs to be made on the upper control arm to leave sufficient telescopic travel and rebound space for the shock absorber and the coil spring installed above, without affecting the left and right swing of the motor as the steering knuckle arm rotates. Additionally, if conditions permit, an air shock absorber can be installed to solve this problem. If you are worried about insufficient firmness, you can also find another position on the lower control arm for the improved installation of the shock absorber. For the rear wheels that do not require steering, a MacPherson-type improvement design can be made according to the above method. This technology can also be designed and applied to suspensions with a multi-link structure. In this way, based on the already mature various technologies, just because of the addition of the motor, a new combined device integrating steering, power, running, braking, shock absorption, and suspension is formed.

[0007] The outstanding effects and significant improvements of installing the motor between the control arms are as follows: By simply improving the technology of "installing the motor on the steering knuckle arm", the power transmission path is streamlined and optimized, the weight of the vehicle is reduced, and the energy loss during transmission is decreased. By recovering and converting kinetic energy into electricity, the vehicle's dependence on high-end batteries and energy storage technologies is reduced, and its dependence on fuel range extender and hybrid power technologies is eliminated, thereby improving the vehicle's endurance. In principle, each motor is matched with a set of batteries. The decentralized power setting reduces the demand for high-power motors in electric vehicles, reduces the usage of batteries, and further reduces the weight of the vehicle, promoting the lightweight improvement of the vehicle. This appropriate and sufficient benign power setting naturally reduces the manufacturing and usage costs of the vehicle. The simple combined structure of the present invention is more convenient for tire replacement and machine disassembly and repair, and the balanced weight distribution improves the vehicle's stability.

[0008] Importantly, this technical arrangement where the driving wheel is used to drive the vehicle forward and the driven wheel is used to recover kinetic energy for power generation enables a pure electric vehicle to continuously generate electricity while in motion. Compared with Tesla's power recovery technology where stepping on the accelerator (throttle) drives the vehicle and releasing the accelerator generates electricity, the dual-motor drive and dual-motor power generation of the present invention have greater technical advantages in terms of the working duration and increment of power generation. By integrating the motor with both driving and power generation functions like Tesla's into the cross-arm interposed motor technology of the present invention and applying it to all wheels, and through simple switch control, it is possible to switch between alternating front and rear wheel drive or four-wheel drive, thus becoming a pure electric off-road vehicle with power generation capabilities.

[0009] The present invention names the cross-arm interposed motor technology as: "Tiger Tally Cross-arm Interposed Motor". The pure electric vehicle manufactured using this technology is named: "Tiger Tally Electric Vehicle". As components of the vehicle and the motor, the present invention designs the graphics of tigers and eagles as technical symbols.

Claims

1. Technical features of the present invention:

1. Install the motor on the designed disc at the central position of the "knuckle arm" of the vehicle, place it between the vehicle wheel and the upper and lower fork arms of the suspension, and make improvements on the original half-shaft power transmission technology. Make the rotor shaft end of the spline-type that also serves as the half-shaft insert into the keyway of the wheel hub, make technical connections with the brake disc and the wheel, and be used to drive the vehicle forward or recover kinetic energy for power generation.

2. Install the motor on the designed disc under the shock absorber of the MacPherson suspension of the vehicle, make improvements on the original half-shaft type power transmission technology, make the shaft end of the motor rotor with splines that also serves as the half-shaft insert into the keyway of the wheel hub, make technical connections with the brake disc and the wheel, and be used to drive the vehicle forward or recover kinetic energy for power generation.

3. Take the "motor interposed between the tiger charm-shaped fork arms" as the technical basis and innovatively manufacture the "tiger charm-shaped electric vehicle".

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