Hybrid vehicle-based powertrain, hybrid vehicle, and control method

Abstract

This application proposes a powertrain based on a hybrid vehicle, a hybrid vehicle and a control method, wherein the powertrain includes: an engine, a BSG motor and a storage battery; wherein, the kinetic energy is transmitted between the engine and the BSG motor through a transmission belt; The BSG motor is electrically connected to the battery; the BSG motor is used to start and run with the electric energy provided by the battery, and transmits the output kinetic energy to the engine through the transmission belt; the engine is used to increase the speed by using the kinetic energy transmitted by the transmission belt. When the speed increases to the start threshold, the start process of fuel injection ignition is carried out. The engine can be started without a starter, and the air-fuel ratio when the engine starts is reduced, so as to achieve the purpose of reducing fuel consumption. In addition, the BSG motor drives the engine to start, which can reduce the noise when the vehicle starts and improve the user's driving experience.

Description

technical field [0001] The present application relates to the field of vehicle technology, and in particular to a powertrain based on a hybrid vehicle, a hybrid vehicle and a control method. Background technique [0002] Hybrid vehicles, due to their energy saving, low emission and other features, are becoming more and more popular among consumers. In the related art, when the hybrid vehicle is started, the engine is started by the starter. [0003] However, by starting the starter, the air-fuel ratio is high, resulting in high fuel consumption and high noise during start-up. Contents of the invention [0004] This application aims to solve one of the technical problems in the related art at least to a certain extent. [0005] For this reason, the present application proposes a powertrain based on a hybrid vehicle to start the engine without a starter and reduce the air-fuel ratio when the engine starts, thereby achieving the purpose of reducing fuel consumption. In add...

AI Technical Summary

Problems solved by technology

In addition, the BSG motor drives the engine to start, which can reduce the noise when the vehicle starts, and improve the user's driving experience. It is used to solve the problem of starting the engine through the starter in the prior art, which leads to high fuel consumption due to high air-fuel ratio. And the technical problem of loud noise when starting

Images