Starting control method and device of vehicle and vehicle

Abstract

The invention discloses a starting control method and device of a vehicle and the vehicle. The method comprises the steps that the temperature of a starting power source is obtained in real time; when a starting signal of the vehicle is received, whether the temperature of the starting power source is lower than the preset temperature or not is judged; when the temperature of the starting power source is lower than the preset temperature, a first control signal is generated and sent to a first relay and a second relay, so that the first relay is made to control the starting power source to be connected to a starting motor of the vehicle according to the first control signal, and meanwhile the second relay controls disconnection of the starting motor and an engine according to the first control signal and keeps disconnection within the preset time; after the preset time passes, a second control signal is generated and sent to the second relay, and the second relay is made to control the starting motor to be connected with the engine according to the second control signal to start the vehicle. According to the starting control method and device of the vehicle, ignition capacity of the vehicle at low temperature is improved, and the user experience is improved.

Description

technical field [0001] The present invention relates to the technical field of vehicles, in particular to a vehicle startup control method, device and vehicle. Background technique [0002] In the field of new energy vehicles, lithium batteries are widely used in many models. In terms of use function, lithium batteries have three main uses in the field of complete vehicles: one is as a power battery for electric vehicles to provide power sources for complete vehicles, including the current mainstream EV (pure electric) electric vehicles and PHEV (plug-in electric vehicles) Type hybrid) electric vehicles; second, as a starter battery, replacing the current function of lead-acid batteries; third, as an auxiliary energy source, that is, we often say that green hybrids, battery modules not only assume the use of lead-acid batteries, but also need to undertake Braking energy feedback, power assist and other functions. Of course, in some models, lithium batteries are mainly used...

AI Technical Summary

Problems solved by technology

In order to improve the ignition performance of lead-acid batteries at low temperatures, traditional fuel vehicles are generally equipped with higher-capacity lead-acid batteries or two lead-acid batteries, which greatly increases the input cost, and the cycle life of lead-acid batteries decreases rapidly. It will soon encounter the problem of sparking at low temperature again; there are also some technicians in the field who put the surface of the battery close to the thermistor sheet, and discharge the thermistor sheet through an external power supply at low temperature to achieve the purpose of heating the starting battery. This kind of design is difficult to realize in the implementation process, and it increases the cost input while increasing the installation space, which is not worth the candle

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