A vehicle starting control method for reducing fuel consumption

Abstract

The invention relates to a vehicle starting-up control method, particularly relates to a vehicle starting-up control method capable of reducing oil consumption, and aims at solving the problems of over-high engine rotation speed, larger impact and increase of sliding friction work and oil consumption possibly caused by improper operation by a driver during starting up of the vehicle. According to the method, the relation between engine torque and clutch friction torque during starting up of a vehicle is analyzed and studied, an electronic throttle and a clutch position sensor are additionally arranged on a manual shift automobile, and an electronic throttle control system which uses a microprogrammed control unit as the control core, and uses the clutch release bearing position, the engine rotation speed and the rotation speed of a gearbox input shaft as the input signals is developed to coordinately control the engine torque and the clutch friction torque during the starting up of a vehicle so as to realize the comprehensive control of the impact and sliding friction work during starting up of the vehicle and improve the oil economy and riding comfort during the starting up of the vehicle.

Description

technical field [0001] The invention relates to a control method for vehicle start, in particular to a vehicle start control method for reducing fuel consumption. Background technique [0002] At present, the world is facing severe energy shortage and environmental pollution. The fuel consumption and exhaust emissions of automobiles have a significant impact on energy consumption and environmental pollution. The traditional mechanical adjustment and control methods are difficult to achieve the best control of the car, so the various control systems of the car are developing towards electronic control. In order to improve the performance, the function of the gasoline engine management system is continuously enhanced, and the software structure and control algorithm are more and more complex. Higher requirements are placed on the air intake control system of gasoline engines. The electronic throttle control system can achieve the best air intake control according to the tor...

AI Technical Summary

Problems solved by technology

[0012] Aiming at the problems that the engine speed may be too high, the impact degree may be high, the friction work and the fuel consumption may be increased due to improper operation by the driver during the starting process of the vehicle, the present invention analyzes the engine torque and the clutch friction torque during the starting process of the vehicle. The analysis and research of the relationship, the installation of electronic throttle and clutch position sensors on manual transmission vehicles, the development of a freescale MC9S12DT128 microcontroller as the control core, the clutch release bearing position, engine speed, gearbox input shaft speed as input signals The electronic throttle control system coordinates and controls the engine torque and clutch friction torque during the starting process of the vehicle, so as to realize the comprehensive control of the impact and sliding work during the starting process of the vehicle, and improve the fuel economy of the vehicle during the starting process sex and ride comfort

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