Gear shifting control method, device and equipment adaptive to ramp road condition and medium

Abstract

The invention discloses a gear shifting control method, device and equipment adaptive to ramp road conditions and a medium, and relates to the technical field of gear shifting control. The gear shifting control method comprises the following steps that gradient data and vehicle data are obtained, required wheel end torque is analyzed, and a first transmission ratio is reversely deduced with a power source available torque curve and a target working rotating speed as constraints; based on the vehicle demand longitudinal force, engine braking force bound with the transmission ratio is removed, and first hydraulic braking force is distributed in combination with braking system regeneration constraint and rate constraint; a plurality of gear shifting control groups are generated through Monte Carlo random sampling, and an enumeration control group is obtained through screening according to the relation between the gear shifting control groups and the required longitudinal force; an enumeration control group simulates application, evaluates an effect, constructs a gear shifting control group and an evaluation result coordinate system, selects proper control in combination with a gradient type, maps a rotation ratio to gear application, realizes self-adaptive gear shifting control, and solves the braking control problem of considering energy efficiency, safety and comfort of a vehicle under different ramp road conditions.

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