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Braking controlling system, method and device for electric vehicle

An electric vehicle and brake control technology, which is applied in the field of vehicle engineering, can solve problems affecting driving safety and increase the emergency braking distance of vehicles, and achieve the effect of reducing the braking distance and improving driving safety

Inactive Publication Date: 2017-11-07
BEIJING ELECTRIC VEHICLE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the addition of energy storage components (mostly high-voltage power batteries) in pure electric vehicles, the weight of the vehicle itself will also increase, which will bring huge pressure to the braking system of the vehicle and increase the emergency braking of the vehicle. distance, affecting driving safety

Method used

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  • Braking controlling system, method and device for electric vehicle
  • Braking controlling system, method and device for electric vehicle
  • Braking controlling system, method and device for electric vehicle

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Embodiment Construction

[0037] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0038] The brake control system, method and device of the electric vehicle according to the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0039] With the rapid development of the pure electric vehicle industry in China in recent years, the public's acceptance of electric vehicles has increased significantly. At the same time, higher and higher requirements have been put forward for the driving range of electric vehicles. In order to meet the increasing needs of users a...

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Abstract

The invention provides a braking controlling system, method and device for an electric vehicle. The braking controlling system comprises a braking pedal, a whole vehicle controller and a driving motor, wherein the braking pedal is used for feeding back a braking signal; the whole vehicle controller is used for inquiring the corresponding threshold acceleration of the speed of the electric vehicle when the braking pedal feeds back the braking signal; whether the electric vehicle is in an emergency braking status or not is judged according to the fact that whether the negative acceleration of the electric vehicle is higher than the threshold acceleration or not; if the electric vehicle is in the emergency braking status, the driving motor is controlled to conduct energy recycling; and the driving motor is used to conduct energy recycling under the control of the whole vehicle controller. According to the braking controlling system, energy recycling can be achieved, so that a power battery is charged to assist braking, the braking distance is reduced, running safety is improved, and the problems that the emergency braking distance is increased and running safety is affected caused by increased own-weight due to the fact that energy storing parts are added in the electric vehicle in the prior art are solved.

Description

technical field [0001] The invention relates to the technical field of vehicle engineering, in particular to a brake control system, method and device of an electric vehicle. Background technique [0002] In the face of increasingly severe energy and environmental problems, the increasing demand for oil resources and the environmental pollution caused by traditional fuel vehicles have aroused widespread concern. Energy-saving vehicles and new energy vehicles have sparked a research boom in various countries. [0003] As a zero-emission and zero-pollution pure electric vehicle, it is not only of great significance to my country's energy security and environmental protection, but also an important direction for my country's automotive industry to achieve transformation and upgrading and technological breakthroughs. Different from traditional fuel vehicles, the energy of pure electric vehicles comes from high-voltage power batteries, super capacitors, flywheels, etc., and uses ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L7/10B60L15/20
CPCB60L7/10B60L15/20Y02T10/72
Inventor 李玮代康伟梁海强王亚楠罗曼
Owner BEIJING ELECTRIC VEHICLE
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