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A method for a vehicle approaching a descent, a control device, a powertrain, a vehicle, a computer program and a computer-readable medium
A method for a vehicle approaching a descent, a control device, a powertrain, a vehicle, a computer program and a computer-readable medium
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机译:用于车辆下降的方法,控制装置,动力总成,车辆,计算机程序和计算机可读介质
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摘要
The present invention relates to a method for a vehicle (1) approaching a slope (200), the vehicle (1) comprising: an energy storage unit (4); and an auxiliary brake (6); wherein the method comprises, before reaching a beginning (210) of the gradient (200): determining (s101) a maximum constant vehicle speed (vmax) for driving down the gradient, which allows the energy storage unit (4) to pass at the end (220) of the gradient (200) to be fully charged, wherein the determination of the maximum constant speed down the gradient is based on a specific ratio of braking power, which is to be provided by charging the energy storage unit (4), and braking power, which is based on the auxiliary brake ( 6) is to be provided, the ratio being determined on the basis of a current vehicle weight, a length of the slope (200) and a current charging capacity of the energy storage unit (4); and using (s102) the maximum constant vehicle speed (vmax) as an input variable in order to enable the vehicle (1) to be controlled in such a way that the vehicle (1) has the maximum constant vehicle speed (200) at the beginning (210) of the downhill gradient (200). vmax).
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