Engine start control method and device, whole vehicle controller and automobile

Abstract

The invention provides an engine start control method, an engine start control device, a whole vehicle controller and an automobile. The engine start control method is applied to the whole vehicle controller of a dual-clutch hybrid electric vehicle, and comprises the following steps: firstly, acquiring working condition information of the current vehicle; then, according to the working condition information, starting an engine according to a pre-stored control strategy, wherein the working condition information comprises driving speed information, gear lever position information and an ambienttemperature value; the dual-clutch hybrid electric vehicle comprises an even clutch and an odd clutch; a driving motor of the dual-clutch hybrid electric vehicle is connected with an even input shaftof a transmission box through a gear and is connected with the engine through the even clutch; and the engine is further connected with a starter. In allusion to the seven-speed dual-clutch hybrid electric vehicle, through comprehensive consideration of the vehicle speed, the gear position, the temperature and other information, the corresponding control strategy is matched to start the engine, and thus the comfort and the adaptability of engine start under various different working conditions of the whole vehicle are taken into consideration while the difficulty in low-speed start of a single motor is solved.

Description

technical field [0001] The invention relates to the technical field of new energy vehicles, in particular to an engine startup control method, device, vehicle controller and vehicle. Background technique [0002] For a hybrid vehicle, especially a deep hybrid vehicle, the timing of engine intervention is more complex, such as energy management, driving performance, driving mode, safety protection, human-computer interaction, announcement design, etc., which need to be considered. envirnmental factor. Generally speaking, there is a possibility of starting under any working condition, and the performance of the starting process mainly depends on the characteristics of the coupling device structure and the corresponding process control method. [0003] For hybrid vehicles with dual-motor structure characteristics, by using BSG (Belt-driven Starter / Generator, belt-driven starter / generator integrated motor) or an ISG ((Integrated Starter / Generator, integrated starter / generator i...

AI Technical Summary

Problems solved by technology

However, for this hybrid power system, how to solve the difficulty of starting the single motor at low speed while taking into account the comfort and adaptability of the engine starting under various working conditions of the vehicle has not yet proposed an effective solution.

Images