Gear selection method and system for hybrid vehicle, electronic equipment and storage medium

A gear selection and vehicle technology, applied in the direction of mechanical equipment, transmission control, components with teeth, etc., can solve the problem of unreasonable target gear selection, achieve the effect of avoiding coaxial downshifting and speeding up the dynamic response
CN112240387AActive Publication Date: 2021-01-19ZHEJIANG GEELY HLDG GRP CO LTD +1
22 Cites 5 Cited by

Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
ZHEJIANG GEELY HLDG GRP CO LTD
Publication Date
2021-01-19

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides a gear selection method and system for a hybrid vehicle, electronic equipment and a storage medium. The method comprises the steps that the current driving state of a vehicle and the working condition of an engine are determined; if it is determined that the vehicle is in the running state and the engine is in the shutdown working condition, an engine rotating speed limitinggear is obtained according to the current vehicle condition and the rotating speed of a transmission input shaft of each gear corresponding to the current vehicle speed; the vehicle conditions comprise accelerator pedal opening degree, vehicle speed, braking condition, engine idling speed and rotating speed; an acceleration mode of the vehicle is determined according to the accelerator pedal opening degree; if the acceleration mode is full-accelerator acceleration, a downshift mode after full-accelerator acceleration is obtained according to the vehicle speed; and if the downshift mode is coaxial downshift, the engine rotating speed limiting gear is lowered by a set gear, and a target gear when the engine is started is obtained. According to the method, selection of the target gear can bebetter matched with the rotating speed of the engine, and the problem of power delay caused by too low gear selection or the target gear in the gear shifting process is avoided.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present application relates to the technical field of hybrid vehicle transmission control, in particular to a hybrid vehicle gear selection method system, electronic equipment and a storage medium. Background technique

[0002] At present, the target gear selection of the transmission is mainly based on the opening of the accelerator pedal and the vehicle speed; due to the large inertia of the vehicle, the moment the accelerator pedal is stepped on, the vehicle speed can be considered constant, and the driver's operation is judged according to the opening of the accelerator pedal intention. The larger the opening of the accelerator pedal, the greater the acceleration required by the driver, and higher driving force is required to accelerate the vehicle, so a lower gear is required to generate greater driving force.

[0003] Hybrid vehicles can coast with the engine shut down, the clutch disengaged, and energy recuperated through the hybrid electri...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More