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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

Active Publication Date: 2021-01-19
ZHEJIANG GEELY HLDG GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] This application is to solve the technical problem that the gear selection strategy in the prior art is unreasonable when the engine is stopped and restarted.

Method used

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

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Embodiment Construction

[0045] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0046]Reference herein to "one embodiment" or "an embodiment" refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present application. In the description of the embodiments of the present application, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "top", and "bottom" are based on the orientations or positional relationships shown in the drawings...

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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.

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

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Application Information

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IPC IPC(8): F16H59/02F16H61/04F16H63/40
CPCF16H59/02F16H61/04F16H63/40F16H2306/00
Inventor 刘晓东董昭相
Owner ZHEJIANG GEELY HLDG GRP CO LTD
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