Engine cold start module and start method

Abstract

The invention provides an engine cold start module and an engine cold start method. The cold start module comprises a super-capacitor core set which is formed by connecting several super-capacitor individual units in series, a DC / DC module which is installed at the top of the super-capacitor core set and used for charging the super-capacitor core set and a shell which is made of high-strength corrosion-resistant flame-retardant plastics and enables the super-capacitor core set and the DC / DC module to be packaged into a whole. According to the provided engine cold start method, the impact caused by initial large start current of starting a motor on a storage battery is reduced, the service life of the storage battery is prolonged, and meanwhile, the cost is reduced; the probability that theengine is successfully started under a cold condition is improved, and the waste of energy in the storage battery is reduced; and meanwhile, through a double-color LED fault state indicator lamp, inthe using process of the cold start module, troubleshooting and overhauling can be performed more conveniently.

Description

technical field [0001] The invention relates to the technical field of starting an automobile engine, in particular to an engine cold starting module and method. Background technique [0002] Today's cars are powered by electric motors. In the starting process, there are usually the following problems: at the moment of starting, because the starting motor speed is zero, no induced potential is generated, and the starting current is very large; Large impact; the current start-up lead-acid batteries generally have a low service life (1000 times or 1-2 years, and the life in the north is shorter at low temperatures); the low-temperature discharge capacity of the battery is poor, and it is generally difficult to start the vehicle at low temperature; the internal resistance of the battery is large, and the current is large. The voltage drop is large during discharge, which seriously affects the normal operation of the vehicle control power supply. Therefore, the battery must pr...

AI Technical Summary

Problems solved by technology

In the starting process, there are usually the following problems: at the moment of starting, because the starting motor speed is zero, no induced potential is generated, and the starting current is very large; Large impact; the current start-up lead-acid batteries generally have a low service life (1000 times or 1-2 years, and the life in the north is shorter at low temperatures); the low-temperature discharge capacity of the battery is poor, and it is generally difficult to start the vehicle at low temperature; the internal resistance of the battery is large, and the current is large. The voltage drop is large during discharge, which seriously affects the normal operation of the vehicle control power supply

Therefore, the battery must provide the instantaneous high power of the starter motor before the engine can be started, especially when the car is started in cold weather, a greater starting torque is required, and if the battery is subjected to the impact of high current for a long time, the cycle life will definitely be reduced

However, if a lithium titanate battery is used, the manufacturing process of the battery is complicated, the cost is high, and it is not easy to be accepted by consumers.

[0003] The existing technical solutions all use the battery as the electric energy for starting the motor, but when starting in cold weather, due to the poor low-temperature performance of the battery, it is likely to cause failure to start normally or require multiple starts to succeed

In another patent, in order to overcome the starting of the motor under low temperature conditions, the control strategy solves the problem of cold starting of the car by repeatedly starting the motor. Although this method is effective, it will cause waste of energy in the battery and Wear of the inner wall of the engine cylinder

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