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Control method and device for Hill Descent Control of electric vehicle and electric vehicle

A technology of electric vehicles and control methods, which is applied in the field of vehicle control, can solve problems such as waste and ineffective utilization, and achieve the effects of reducing burdens, eliminating hidden dangers of accidents, and avoiding damage

Active Publication Date: 2017-12-19
BORGWARD AUTOMOTIVE CHINA CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present disclosure is to provide a control method, device and electric vehicle for steep slope descent of an electric vehicle, which are used to solve the problem that the electric energy generated by the generator in the electric vehicle cannot be effectively used when the high-voltage battery cannot be charged, resulting in waste

Method used

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  • Control method and device for Hill Descent Control of electric vehicle and electric vehicle
  • Control method and device for Hill Descent Control of electric vehicle and electric vehicle
  • Control method and device for Hill Descent Control of electric vehicle and electric vehicle

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Embodiment Construction

[0071] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

[0072] figure 1 It is a flow chart of a control method for steep descent of an electric vehicle according to an exemplary embodiment. Such as figure 1 As shown, the electric vehicle has a steep slope descent function, and the control method includes the following steps.

[0073] In step S11, it is determined that the electric vehicle enters into the running state of steep slope desc...

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Abstract

The invention relates to a control method and device for Hill Descent Control (HDC) of an electric vehicle and the electric vehicle. The control method comprises determining whether the electric vehicle goes into an HDC state, determining whether a high-voltage battery of the electric vehicle can be charged, and supplying electric energy generated by a generator to electronic devices in the electric vehicle and / or controlling a bleeder resistor in a motor controller to go into a heating state when the high-voltage battery can not be charged. By supplying the electric energy generated by the generator to the electronic devices in the electric vehicle and / or controlling the bleeder resistor in the motor controller to go into the heating state when the high-voltage battery can not be charged after determining that the electric vehicle goes into the HDC state, the control method and device for HDC of the electric vehicle has the advantages of maximizing the energy recovery of the electric vehicle on a ramp, reducing the burden on a braking system, eliminating hidden accidents caused by overheating of a brake and solving the problem of waste because the electric energy generated by the generator in the electric vehicle can not be effectively used when the high-voltage battery can not be charged.

Description

technical field [0001] The present disclosure relates to the field of vehicle control, in particular, to a control method and device for steep slope descent of an electric vehicle, and the electric vehicle. Background technique [0002] The basic principle of the steep slope descent function of traditional fuel vehicles is to combine the braking force generated by the engine cylinder with the ABS (antilock brake system; anti-lock braking system) system to work together to keep the vehicle at a low speed when going down a steep slope but will not occur. When the wheels are locked, cooperate with the gearbox to lower the gear to reach the low-speed downhill driving state of the vehicle. Electric vehicles are powered by electric energy. The motor drives the car forward or backward. Generally, it is equipped with a single-stage deceleration mechanism. It cannot use the engine and gearbox to generate braking force to achieve the function of steep slope descent. [0003] Chinese ...

Claims

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Application Information

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IPC IPC(8): B60L7/22
CPCB60L7/22
Inventor 黄伟伟
Owner BORGWARD AUTOMOTIVE CHINA CO LTD
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