Preheating method of hybrid vehicle and hybrid vehicle using same

Abstract

The invention discloses a preheating method of a hybrid power vehicle and the hybrid power vehicle adopting the preheating method, and the preheating method comprises the steps that the state of the vehicle is obtained; judging whether the vehicle meets a vehicle heating condition or not according to the state of the vehicle; if yes, the clutch is controlled to be combined, and the load is powered on; obtaining a vehicle demand; and controlling the engine to work at a first rotating speed in a non-idling state according to vehicle requirements, controlling the motor to generate electricity at a first torque, and heating the power battery through the heater. Therefore, on one hand, emission during vehicle heating can be improved; on the other hand, in the vehicle heating process, the engine drives the motor to generate electricity, the electricity can be supplied to the load, the power battery is heated through the heater, the working environment of the power battery is improved, energy during vehicle heating can be utilized, energy consumption is reduced, the working environment of the battery pack is more suitable, and the service life of the battery pack is prolonged. The charging and discharging performance of the battery pack can be improved, and a vehicle can be preheated more quickly.

Description

Technical field [0001] The present invention relates to the field of vehicle technology, in particular to a hybrid vehicle preheating method and a hybrid vehicle employing it. Background [0002] In related technologies, the cold winter temperature is very low, and the vehicle needs to be hot before it can be driven. Vehicles are generally idle hot cars, the engine is in a state of idle at this time, the emissions of the vehicle are very bad at this time, and the fuel consumption rate is high. At the same time, in the cold winter, power batteries, especially lithium-ion batteries, are greatly affected by temperature, the temperature is too low, and the charge and discharge performance of lithium-ion batteries will be limited. Contents of the Invention [0003] The present invention is intended to solve at least one of the technical problems present in the prior art. To this end, one object of the present invention is to propose a hybrid vehicle preheating method, the preheating ...

AI Technical Summary

Problems solved by technology

Vehicles are generally idling and warming up on the spot. At this time, the engine is in an idling state. At this time, the emission of the vehicle is very bad, and the fuel consumption rate is relatively high.

At the same time, in the cold winter, power batteries, especially lithium-ion batteries, are greatly affected by temperature. If the temperature is too low, the charging and discharging performance of lithium-ion batteries will be limited.

Images