Electric vehicle, control method thereof and system for controlling driving and braking thereof

Abstract

Disclosed are an electric vehicle, a control method thereof and a system for controlling driving and braking thereof. The system comprises a pedal plate, a first collection unit, a second collection unit and a control unit; the first collection unit is used for collecting a pedal plate depth signal; the second collection unit is used for collecting the rotating speed of a motor; the control unit is used for determining whether a control signal needs to be output to control the driving and braking of the vehicle or not according to the pedal plate depth signal, determining a driving power value for the vehicle according to the pedal plate depth signal and the rotating speed of the motor and calculating the braking force of the vehicle according to the pedal plate depth signal. According to the electric vehicle, the control method thereof and the system for controlling the driving and braking thereof, a serious traffic accident caused by the accidental stepping of a driver due to the separate arrangement of the fuel feed pedal and the braking pedal is avoided; the driving and braking control of the vehicle can be implemented only through the single pedal plate of the system and accordingly the operation of the driver is simple; the control signal is output to the motor from the control unit to control the motor to output the reverse torque in the braking process so as to enable the energy to be recycled to a battery and accordingly the maximum recovery of the energy is implemented.

Description

Technical field [0001] The invention belongs to the field of vehicle control, and specifically relates to a system for controlling the driving and braking of an electric vehicle, an electric vehicle and a control method thereof. Background technique [0002] At present, the fuel pedal and brake pedal of a vehicle are generally set separately and operated by the same foot of the driver. When the fuel pedal is depressed, it accelerates, and when the fuel pedal is raised, it decelerates; and when the brake pedal is depressed, it decelerates and brakes. move. Since the two pedals are operated in opposite directions when the vehicle is decelerated, the driver must accurately determine which pedal to step on at any time. This will make the driver’s spirit always in a state of high tension and encounter emergency situations or thoughts. When dispersing, misstepping and late stepping can easily occur, leading to a car accident. [0003] Moreover, because existing vehicles mostly rely on ...

AI Technical Summary

Problems solved by technology

Since the operation directions of the two pedals are opposite when the vehicle is decelerated, the driver must accurately make a judgment on which pedal to step on at any time, which will keep the driver's spirit in a state of high tension all the time. When dispersing, it is easy to step on by mistake and step on late, resulting in a car accident

[0003] Moreover, because most of the existing vehicles rely on mechanical braking when stepping on the brake pedal, this mechanical braking will cause most of the energy to be lost in the friction of the brake pads in the form of heat, thereby greatly consuming energy.

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