Anti-slip control method for power-off anti-slip device of electric vehicle

Abstract

The invention discloses a device for preventing backward sliding caused by power outage in running of an electrocar. The device comprises a detection control unit, an electronic brake unit and current sensors; the electrocar is a rear-wheel-driven type electrocar; the current sensors are connected in series to a circuit of a rear-wheel-driving motor and are used for detecting the current of the rear-wheel-driving motor; the output ends of the current sensorsare connected with the detection control unit; the detection control unit is also connected with the electronic brake unit and is capable of controlling the action of the electronic brake unit. The invention also discloses a control method of the device for preventing backward sliding caused by power outage in running of the electrocar. According to the device disclosed by the invention, the current sensors connected in series are used for detecting the real-time current of each power motor as elementary judgment basis; electronic brakesare automatically controlled to execute and cancel braking action in order to effectively reduce the occurrence probability of accidents caused by unexpected power outage when the electrocar is on an upslope, and a timely and reliable protection effect is played; the structural design of the original car is not affected by installation of the device; the device can be installed directly; the reconstruction cost of the car is low; and the control method disclosed by the invention is simple, flexible, convenient to operate, capable of being set automatically or manually, and high in practicability.

Description

technical field

[0001] The invention relates to the field of electric vehicles, in particular to an anti-slip control method for an anti-slip device when the electric vehicle is powered off. Background technique

[0002] At present, in order to solve the problem of automobile tail gas polluting the atmosphere, people are devoting themselves to the research and development of low-energy and small-displacement automobile engines on the one hand, and on the other hand, they have begun to study the use of electric motors instead of gasoline engines to manufacture electric vehicles. With the continuous improvement of battery technology and motor technology, electric vehicles are getting more and more attention. The electric micro sports car is small in body, cheap in price and good in transportation effect, and is very popular among consumers. When an electric vehicle is going uphill, if the accelerator pedal is released, the vehicle may slip freely due to gravity. The existing ...

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