Full line control electric vehicle with variable kinetic characteristics

Abstract

The invention discloses a full line control electric vehicle with variable kinetic characteristics. The full line control of the electric vehicle is reflected in the operation of the driver and comprises the operations of steering, accelerating and braking. Only the operation signal is generated, and corresponding controller is used for collecting the corresponding signal and controlling a corresponding actuator to act correspondingly according to a certain algorithm. The variable kinetic characteristics of the electric vehicle is reflected in the structure: a wheel hub motor is arranged in each of the mutually independent wheels, the wheel hub motors are mutually independent and provide driving force or braking force for all the wheels, each wheel is provided with a steering motor, the steering motors are mutually independent, an unsprung frame of each wheel is provided an active suspension, and the unsprung frames are mutually independent. The variable kinetic characteristics of the electric vehicle is also reflected in the control algorithm: the relationship of the size of the driving force or braking force of each wheel hub motor, the relationship of the size of the steering angle of each steering motor and the relationship of the size of the stiffness and the damping of each active suspension are decided by the control algorithm without being restricted by the mechanical connection, so that the variable kinetic characteristics of the electric vehicle are realized.

Description

technical field [0001] The present invention relates to a full-wire control electric vehicle, more specifically, the present invention relates to a full-wire control electric vehicle with variable dynamic characteristics, four-wheel independent drive, independent steering, independent braking, and independent active suspension (hereinafter Referred to as full-wire control electric vehicle). Background technique [0002] Traditional cars (vehicles that use fuel as fuel and engines as power sources) can ensure that the car will run according to the driver's wishes without failure after it leaves the factory, that is, the vehicle will follow the dynamics of the vehicle itself. Characteristics give certain output responses to driver inputs, including steering, acceleration / deceleration, and braking. That is, after the vehicle itself becomes a product, the dynamic response characteristics of the vehicle should be fixed without considering the failure of the vehicle itself and th...

AI Technical Summary

Problems solved by technology

Therefore, for traditional cars, the dynamic characteristics of the vehicle cannot adapt to the driving style and needs of each driver; drivers must adapt to the different dynamic characteristics of different cars, and adapt and compensate for the difference in characteristics, so as to ensure different The car can drive on a safe path that considers the driver's wishes under different working conditions

This creates a great burden on the driver, which affects the driving safety and driving comfort of the car, and cannot adapt to the driver's individual driving style and needs.

In addition, the suspension system of traditional vehicles is mainly passive suspension, which cannot provide dynamic auxiliary control for vehicle stability control, and the current research on electric vehicles still focuses on the stability control methods of traditional vehicles. The control algorithm of the new generation of hub motor electric vehicles and traditional vehicles should be very different

The current research and development of electric vehicles has not fully utilized the advantages of the structural characteristics and controllable degrees of freedom of the new generation of electric vehicles.

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