Electric vehicle parking method and related device

Abstract

The invention discloses an electric vehicle parking method and a related device, after a vehicle control unit receives a parking instruction and the longitude and latitude of the current position, the output torque required by parking is calculated according to the longitude and latitude of the target position included in the instruction and the difference value of the longitude and latitude, and the output torque is sent to a power total vehicle system; and when the difference value is smaller than the threshold value, the vehicle control unit sends a deceleration instruction to the electronic control braking system, so that the electric vehicle decelerates. After the electric vehicle is parked, if the difference value is smaller than the parking threshold value, the electric vehicle is successfully parked in the parking space. Therefore, the vehicle control unit automatically controls the electric vehicle to start and decelerate according to the difference value change of the longitude and latitude of the current position and the longitude and latitude of the target position, so that the electric vehicle is parked in the parking space, the operation fatigue of a driver is avoided, and meanwhile, the electric vehicle is charged after being successfully parked in the parking space. And the problem that people and vehicles are injured due to parking position deviation can be avoided.

Description

technical field [0001] The invention relates to the technical field of vehicle control, in particular to a parking method and a related device for an electric vehicle. Background technique [0002] In the face of increasingly serious energy shortages and environmental degradation, clean, pollution-free, zero-emission pure electric vehicles have gradually entered people's field of vision, which has also promoted the construction of infrastructure such as charging and swapping stations for large-scale electric vehicles. At this stage, the service objects of domestic charging and swapping stations in my country are mainly group users such as buses, taxis, and official vehicles. [0003] Taking electric buses as an example, in urban working conditions, electric buses have their own inherent characteristics, such as relatively fixed road conditions and relatively fixed driving time, so many bus companies use the gaps between stations to set up fast charging stations during the op...

AI Technical Summary

Problems solved by technology

[0004] However, the defect of pantograph fast charging is that the requirements for the driver's parking longitudinal positioning and lateral positioning are relatively high. Generally, physical limit or positioning marking lines are used.

Judging from the situation of driving in place and parking, the driver's driving operation requirements are relatively high, which is likely to cause driver fatigue

And if the parking position is inaccurate, it will lead to charging failure and affect the normal replenishment of electric energy

Even the top pantograph and pantograph are barely connected due to the deviation of the parking position. Although they can barely charge, it will cause arcing and there is a huge risk of injuring people and cars.

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