Vehicle fuel electrical control method and system, vehicle and computer readable medium

Abstract

The invention relates to a vehicle fuel oil electrical control method and system, a vehicle and a computer readable medium. The method comprises the steps acquiring the total vehicle speed variable quantity of the vehicle in a current collision process; judging whether the total variation quantity of the vehicle speed is out of a vehicle fuel oil electric control triggering threshold value line ornot; if so, triggering vehicle fuel electric cut-off control, the vehicle fuel oil electrical control triggering threshold line being an elliptic curve established according to a first change speed of the vehicle under the maximum non-triggering working condition of head-on collision, a second change speed of the vehicle under the maximum non-triggering working condition of side collision and a third change speed of the vehicle under the maximum non-triggering working condition of rear collision. The method does not depend on front, side and rear collision algorithms any more; and moreover, the coverage range of the threshold line is enlarged, the control stability is ensured to the maximum extent, the collision safety performance is improved, and complaints of after-sales accidents are reduced.

Description

technical field [0001] The invention relates to the technical field of automatic driving, in particular to a vehicle fuel electrical control method and system thereof, a vehicle, and a computer readable medium. Background technique [0002] When a vehicle collides with an accident, the mechanical deformation or even overturning caused by the collision will cause damage to the vehicle's oil circuit system and short circuit of the circuit, resulting in a fire. Vehicle manufacturers generally use airbag ECU (full name in English: Electronic Control Unit, full name in Chinese: electronic control unit) to trigger the fuel cut-off and power-off device. When the vehicle has a strong collision, the airbag ECU triggers the fuel cut-off device to cut off the fuel supply, avoid fuel leakage, and cut off the electrical system circuit, so as to achieve the purpose of protecting personnel and system safety. [0003] refer to figure 1 At present, the strategy adopted by most OEMs is tha...

AI Technical Summary

Problems solved by technology

If the collision causes the airbag ECU to trigger, the vehicle will suddenly cut off fuel and power, and the user may be surprised, and the airbag ECU must be replaced for subsequent maintenance, and the user may complain

[0006] 2) If the front, side and rear collision algorithm strategies are unreasonable, it will also affect the fuel and electrical cut-off algorithm

For example: see figure 2 , the after-collision point explosion condition is not considered in the crash test, so the collision coverage is small, and the fuel cannot be cut off in the after-collision condition

[0007] 3) The existing frontal, side and rear collision algorithms take into account the weight of the collision acceleration. In this way, for collisions with small longitudinal and lateral accelerations and high energy, there are situations where the fuel and electricity cannot be cut off.

[0008] To sum up, the airbag ECU triggers the fuel cutoff and power cutoff device to cut off the fuel and electrical supply technology needs to be improved in the case of a strong collision.

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