Ramp parking control method, device and equipment and storage medium

Abstract

The invention discloses a ramp parking control method, device and equipment and a storage medium, and the method comprises the steps that a vehicle drives into a ramp, and a parking control instruction is received; when it is determined that the vehicle meets the parking condition, the parking control instruction is sent to the control module; and the locking signal returned by the control module is received, and the first torque output by the driving motor is cancelled. Therefore, when the vehicle is driven into the ramp and the vehicle locking signal is determined to be received, the vehicle is locked, that is, the vehicle stably stays on the ramp, the torque output by the driving motor is cancelled, and the vehicle is prevented from sliding on the ramp. For example, the parking control instruction is a P-gear engaging instruction, torque is cancelled only when a vehicle locking signal is received, the NVH problem caused by knocking of a pawl and a ratchet wheel during P-gear engaging is avoided, or the situation that the vehicle slides on a slope when the pawl cannot be clamped into the ratchet wheel is avoided; the parking control instruction is an instruction generated when the electronic parking is started, the torque is cancelled only when the vehicle locking signal is received, and slope sliding and pause when locking of the electronic parking is not completed are avoided.

Description

technical field [0001] The present application relates to control technology, and in particular, to a method, device, device and storage medium for parking on a ramp. Background technique [0002] For vehicles such as cars and trucks, being able to climb a certain slope and realize ramp parking is an essential function. When the vehicle is parked on a ramp, under the action of the vehicle's gravity, the vehicle will generate a downward sliding force parallel to the direction of the slope. This force acts on the wheels and will generate a corresponding downward sliding torque. If the driver does not step on the brake, or Control the electronic parking EPB and the P block to lock. If the current gear of the vehicle is D, in order to make the vehicle stop on the slope and avoid the danger of slipping, the Vehicle Controller Unit (VCU) controls the output of the drive motor. Torque that is equal in magnitude and opposite to the slipping torque. When the driver depresses the br...

AI Technical Summary

Problems solved by technology

Since the transmission system is twisted under the torque of the aforementioned driving motor, when the output torque of the driving motor is immediately withdrawn, it may cause the ratchet and the ratchet to knock when the P gear is engaged, resulting in noise, vibration and roughness (Noise , Vibration, Harshness, NVH), or the pawl cannot be locked into the ratchet wheel, the vehicle has a sliding slope problem, or when the EPB has not completed locking, sliding slopes and setbacks occur

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