Anti-slipping method for electric vehicle ramps

Abstract

The invention discloses a sliding prevention method for an electric vehicle on a slope. The method comprises the steps that after the electric vehicle is energized for the first time, a motor is driven by a motor control system to rotate, and forward and reverse winding of the motor is judged and memorized in a single chip microcomputer; when the vehicle is in a sliding state, a control system judges the rotating direction of the motor according to the memorized motor winding direction and motor Hall change sequence, the sliding prevention function is started, a three-phase drive lower axle is opened, the vehicle generates great resistance, vehicle sliding is prevented, and then the sliding prevention function of the electric vehicle on the slope is achieved. When the electric vehicle climbs the slope, the vehicle is out of order and enters a sliding prevention system immediately, the timeliness is good, traffic accidents are reduced, a current cannot be generated in the sliding prevention process, the control system cannot be damaged, and the product performance is greatly improved. The method is completed on an original control system, and no whole vehicle cost needs to be added. Therefore, the method has obvious advantages and effects.

Description

technical field [0001] The invention relates to the field of electric vehicles, in particular to a slope prevention method for electric vehicle ramps. Background technique [0002] With the development of society, people have higher and higher requirements for the safety of vehicles. When the electric vehicle frequently occurs when climbing a slope, the vehicle malfunctions and slides backwards to cause traffic accidents, and various manufacturers are working hard to solve this problem. [0003] Previously, when the car failed to climb uphill, they had realized it by starting the anti-theft lock motor and machinery, but because of timeliness, inconvenient operation, damage to the controller caused by high current and high cost, they did not get market approval. recognized. [0004] At the same time, currently on the market, mechanical anti-slope devices, key anti-theft modes, etc. are used to solve the anti-slope function. The use of mechanical devices will increase the c...

AI Technical Summary

Problems solved by technology

The use of mechanical devices will increase the cost of the electric vehicle itself, and it is not suitable for the highly competitive electric vehicle market.

The button anti-theft type is adopted. On the one hand, a button needs to be added to the whole vehicle, and it needs to be manually touched when there is a slippery slope, and the timeliness is relatively poor; on the other hand, when the anti-theft lock is activated, the controller will generate current. Control systems cause damage and are therefore rarely adopted

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