Torque safe control method of new-energy automobile

Abstract

The embodiment of the invention provides a torque safe control method of a new-energy automobile. The method mainly comprises the steps that according to monitored motor parameter information of the new-energy automobile, motor actual torque of the discharging end of a battery is calculated, and according to monitored clutch parameter information of the new-energy automobile, actual output torque of the clutch end is calculated; the difference value between the motor actual torque of the discharging end of the battery and the actual output torque of the clutch end is calculated, the difference value is compared with a preset threshold value, and according to a comparison result, target output torque of the motor is determined. According to the method, the motor actual torque of the discharging end of the battery and the actual output torque of the clutch end are compared and judged, target output torque, output by a whole vehicle controller, of the motor is reasonably judged, and the target output torque of the motor, needed torque of a driver and needed torque of a monitoring layer are further compared, so that safe monitoring and coordination of torque of the automobile are achieved, driving safety is ensured.

Description

technical field [0001] The invention relates to the technical field of automobile torque, in particular to a torque safety control method for new energy vehicles. Background technique [0002] After nearly 10 years of research and development and demonstration operation of new energy vehicles in my country, they basically have the basis for industrialization development. Key technologies such as batteries, motors, electronic control and system integration have made significant progress. Pure electric vehicles and plug-in hybrid vehicles have begun to grow market size. In recent years, positive progress has been made in the promotion and application of automotive energy-saving technologies. Through measures such as the implementation of fuel consumption limit standards for passenger vehicles and fiscal and taxation policies to encourage the purchase of small-emission vehicles, advanced internal combustion engines, high-efficiency transmissions, lightweight materials, and compl...

AI Technical Summary

Problems solved by technology

[0006] At present, there is no solution for multi-level comprehensive monitoring of the torque of new energy vehicles in the prior art

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