Electric vehicle collision protection control method and system
A technology for collision protection and electric vehicles, applied in electric vehicles, vehicle energy storage, vehicle components, etc., can solve problems such as inaccurate collision judgment conditions, inaccurate vehicle control, and vehicle use risks
Active Publication Date: 2020-02-18
ZHENGZHOU YUTONG BUS CO LTD
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Problems solved by technology
[0005] The purpose of the present invention is to provide a collision protection control method and system for an electric vehicle, which is used to solve the problem that the current electric vehicle collision judgment condition is not accurate enough to the battery system, and the vehicle control is inaccurate, resulting in the risk of using the vehicle.
[0006] In order to realize the protection and control of the electric vehicle after the collision, solve the problem that the existing electric vehicle collision judgment condition is not accurate enough to the battery system, the vehicle control is inaccurate and the vehicle has the risk of using the vehicle
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[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0020] Voltage Example
[0021] This voltage embodiment provides a collision protection control system for an electric vehicle, which includes a signal processing module and a signal detection module for detecting the voltage information of the battery system before and after the collision. The input terminal of the signal processing module is connected to the signal detection module to obtain vehicle The voltage value of the battery system before and after the collision; the signal processing module is used to communicate with the vehicle controller, and the system executes a collision protection control method for electric vehicles, such as figure 1 shown, including the following steps:
[0022] 1) Obtain the voltage value of the battery system before and after the vehicle collision.
[0023] 2) Determine the relationship between the voltage change of the...
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The invention relates to the technical field of vehicle protection, in particular to an electric vehicle collision protection control method and system. The system comprises a signal processing moduleand a signal detection module used for detecting pre-collision and post-collision voltage and insulation value information of a battery system. The input end of the signal processing module is connected with the signal detection module so as to obtain the pre-collision and post-collision voltage values and post-collision insulation value of the battery system. According to the acquired information, the signal processing module performs judgment so as to control high-voltage electricity supply when the pre-collision and post-collision voltage change amount of the battery system is not smallerthan a voltage mutation amount upper limit or the post-collision insulation value of the battery system is not larger than a set insulation value, post-collision protection control of an electric vehicle is realized, and the problems that because existing electric vehicle collision judging conditions are not as precise as the level of the battery system, vehicle control is inaccurate, and vehicleusing risks exist are solved.
Description
technical field [0001] The invention relates to the technical field of vehicle protection, in particular to a collision protection control method and system for an electric vehicle. Background technique [0002] Today, environmental pollution, energy crisis and many other factors are driving the rapid development of the electric vehicle industry, especially the explosive growth of new energy buses used in public transportation. Compared with other electric vehicles, passenger cars have more stringent safety requirements and are prone to collision accidents due to the large number of passengers and complex operating environment. The particularity of an electric bus in a collision is manifested in two aspects: one is the extrusion damage between the high-energy, large-mass power battery system and its high-voltage accessories and the body of the vehicle during a collision, which may cause a short circuit in the high-voltage circuit to cause a fire, Explosion, etc.; the second...
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IPC IPC(8): B60L3/00
CPCB60L3/0046Y02T10/70
Inventor 张明荆俊雅史亚林李龙王坤王克成
Owner ZHENGZHOU YUTONG BUS CO LTD