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Chassis control device of electric motor car

A technology for control devices and electric vehicles, applied in control devices, automatic steering control components, vehicle components, etc., can solve the problem of how to superimpose steering wheel signals and accelerator signals, inability to apply vehicle motion control, flexibility and complex function limitations, etc. question

Inactive Publication Date: 2009-10-14
NORTHWEST A & F UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the steering device disclosed in patent 200710017644.1 limits the flexibility and complex functions of the vehicle, and can only be used for position changes when the vehicle is close to a stop state, and cannot be applied to the motion control of the vehicle in the normal driving state
[0005] Patent 200910021065.3 discloses an electric vehicle drive chassis. The locking mechanism under the control of the controller in patent 200710017644.1 is replaced by two electromagnetic friction lock mechanisms, the driving steering friction lock and the braking friction lock, and the driving signal and steering signal are input Drive the driving winding and steering winding of the steering friction lock, and input the braking signal into the braking friction lock, which solves the problem of the wheel rotating around the steering axis during acceleration and deceleration, but does not solve the problem of how the steering wheel signal and the accelerator signal are superimposed

Method used

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  • Chassis control device of electric motor car

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Experimental program
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Effect test

Embodiment 1

[0019] Such as figure 1 It is a schematic diagram of the structure of one of the wheels of the present invention applied to a 4-wheel electric vehicle, including a battery [1], a central controller [2], an accelerator transmitter [3], a steering wheel transmitter [4], and a steering shaft position sensor Drive motor [5], position sensor rotor [6], position sensor stator [7], in-wheel motor [8], drive controller [9], the wheel with the rotation surface j and the rotation axis k and the rotation surface j of the wheel Steering axis h that is not in the same plane.

[0020] The throttle transmitter [3] sends the speed signal to the drive controller [9] through the central controller [2]; the steering wheel transmitter [4] sends the direction signal to the steering shaft position sensor drive through the central controller [2] The motor [5]; the steering shaft position sensor drive motor [5] changes the balance position of the position sensor stator [7] through the transmission m...

Embodiment 2

[0023] The electric vehicle chassis control device of the present invention can also be used on other vehicles. For example, the application number is 200710017673.8 disclosed in a vehicle with 8 in-wheel motors. At this time, each wheel hub motor needs one drive controller output port to control the acceleration and deceleration of the two motors on the same steering shaft respectively.

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Abstract

The invention discloses a chassis control device of an electric motor car, which is provided with a sensor having equilibrium position on each steering shaft, and the sensor is used for detecting the positions of the steering shafts to lead the wheels to accelerate or decelerate. The equilibrium position of the sensor can be changed according to the signal output by a steering wheel transmitter. Therefore, the signal of a steering wheel can be combined with the signal of an accelerator to control a hub motor, and the driving and steering functions of a chassis of vehicle cam be realized. Compared with the prior art, the chassis control device of the electric motor car can conveniently and flexibly realize the function of four-wheel steering.

Description

technical field [0001] The invention relates to the field of electrically driven vehicles, in particular to a chassis control device for an electric vehicle. Background technique [0002] As a clean and efficient means of transportation in the post-petroleum era, electric vehicles have attracted more and more attention. Because the electric vehicle is driven by a DC motor, the layout is flexible, and it can easily overcome the defects of the two-wheel steering mechanism of the existing vehicle. The steering is easy to control, the turning radius of the vehicle is small at low speed, stable at high speed, and the space required for parking is small. [0003] Patent 200710017644.1 discloses a vehicle auxiliary steering device, including a wheel drive motor, a locking mechanism, a plumb shaft, a controller, a battery, a chassis and wheels, and is characterized in that the plumb shaft is connected to the wheel drive motor in an "L" shape , and the axis of the plumb shaft is not...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62D6/00B62D7/14B60K17/30B62D101/00B62D113/00B62D127/00
Inventor 郭康权张军昌梅娜陈军师帅兵郭贵生杨中平朱新华郭文川
Owner NORTHWEST A & F UNIV