Electric vehicle slope torque control method and vehicle controller
An electric vehicle and torque control technology, applied in electric vehicles, control drive, power management, etc., can solve the problems of not considering the actual situation of the electric vehicle ramp, the control process is random and not accurate, and it cannot ensure that the electric vehicle does not slip.
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Embodiment 1
[0078] Such as figure 1 , is a flow chart of a method for controlling the ramp torque of an electric vehicle disclosed in Embodiment 1 of the present application. The method is applied to a vehicle controller and mainly includes the following steps:
[0079] Step S101, when the vehicle starts on a slope, it is judged in real time whether the vehicle is in a state where a slope will occur; if so, execute step S102 to enter the anti-slip mode; if not, execute step S103;
[0080] Step S102, using the first required torque T required by the current vehicle state in the normal driving mode 需1 , the slope information θ of the slope acquired in real time 1 and vehicle running state information, and calculate the first reference torque T 基1 Increase according to the preset magnification until it detects that the current vehicle running status information meets the conditions for exiting the anti-slip mode and exits;
[0081] Step S103, judge in real time whether the vehicle is in t...
Embodiment 2
[0088] Based on the ramp torque control method for electric vehicles disclosed in the first embodiment of the present application, in figure 1 The step S101 of judging in real time whether the vehicle is in a slope state shown in , the specific process includes:
[0089] First, receive the current motor speed, and judge whether the current motor speed is less than the first preset value -A and last for the first preset time t 1 ;
[0090] If so, it is judged that the vehicle is in a state where the slope will slip;
[0091] If not, it is judged that the vehicle is not in the state of slippery slope;
[0092] Among them, A in the first preset value-A disclosed in the embodiment of the present application is a positive value, which is determined by calibration. The preferred value is 2 to 5 rpm (revolutions per minute), but its value is not limited to this.
[0093] Based on the ramp torque control method for electric vehicles disclosed in the first embodiment of the present...
Embodiment 3
[0164] Based on the ramp torque control method of an electric vehicle disclosed in Embodiment 1 and Embodiment 2 of the above application, the corresponding embodiment of the application also discloses a corresponding vehicle controller that can execute the above method. The specific structure is described in detail as follows .
[0165] Such as image 3 As shown, it is a structural schematic diagram of a vehicle controller disclosed in the present application, which mainly includes: a slope judgment unit 1, an anti-slip unit 2, a climbing judgment unit 3, a climbing unit 4, a downhill judgment unit 5, a downhill judgment unit Slope unit 6 and normal travel unit 7.
[0166] The sliding slope judgment unit 1 is used to judge in real time whether the vehicle is in a state of sliding slope when the vehicle starts on a slope, if so, execute the anti-slipping unit 2, and if not, execute the climbing judgment unit 3;
[0167] The anti-roll unit 2 is used to enter the anti-roll mod...
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