A vehicle ramp driving control method and corresponding electronic control unit

Abstract

The invention provides a vehicle ramp running control method and a corresponding electronic control unit. The method comprises the following steps of acquiring a slope of an uphill road where a vehicle is located currently; computing compensation driving force according to the slope of the uphill road and the like; computing vehicle uphill compensation power according to the compensation driving force and the like; computing engine demand power of the vehicle on the uphill road where the vehicle is located currently according to the vehicle uphill compensation power and the like; and adjustingthe transmission gear and the engine power according to the engine demand power of the vehicle on the uphill road where the vehicle is located currently. The compensation driving force is computed through the slope of the uphill road of the vehicle, the engine demand power is computed, and an engine and a transmission are adjusted according to the engine demand power, so that a driver can only partially increase the accelerator treading depth during uphill, a problem of fatigue feeling caused by the fact that the driver needs to deeply tread an accelerator pedal during uphill in the prior artis solved, and a problem of vehicle landslide due to poor driving is solved.

Description

technical field [0001] The invention relates to the technical field of automobile control, in particular to a method for controlling vehicle slope driving and a corresponding electronic control unit. Background technique [0002] When the current vehicle detects that the road slope is greater than a certain value, in order to avoid frequent ups and downs of the transmission to ensure power, it generally delays upshifts and advances downshifts. This shift mode is generally called "slope mode". [0003] "Slope mode" can ensure that there will be no frequent ups and downs when driving on a slope, but it does not adjust the relationship between engine torque and accelerator opening. Therefore, when driving uphill on an actual slope, in order to maintain a certain speed and acceleration, the accelerator pedal needs to be stepped on deeper than on flat roads, especially when the slope is relatively large, the driver's feet are prone to fatigue; in addition, for inexperienced The ...

AI Technical Summary

Problems solved by technology

Therefore, when driving uphill on an actual slope, in order to maintain a certain speed and acceleration, the accelerator pedal needs to be stepped deeper than on flat roads, especially when the slope is relatively large, the driver's feet are prone to fatigue; in addition, for inexperienced If the driver does not step on the accelerator pedal deeply enough, the vehicle will slide when going uphill, causing injuries to the vehicle and other vehicles and pedestrians.

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