Method for controlling a power train of a vehicle, and corresponding device and vehicle

Abstract

A method controls a power train of a vehicle immobilized in a parking position, the vehicle being provided with a parking brake device for immobilizing the vehicle and at least one electric motor. The method includes detecting the slope direction and/or slope data when the parking brake device is in an actuated position, detecting that the parking brake device has switched from the actuated position to a released position, and applying a motor torque setpoint to the electric motor in accordance with the detected slope direction and/or slope data.

1 - 12 . (canceled) 
     
     
         13 . A method for controlling a power train of a vehicle immobilized in a parking position, the vehicle being equipped with a parking brake device for immobilizing the vehicle and with at least one electric motor, the method comprising:
 detecting a direction of and/or data for a slope when the parking brake device is in an applied position;   detecting a transition of the parking brake device from the applied position to a released position; and   applying a motor torque setpoint to the electric motor on the basis of the detected direction of and/or the data for the slope.   
     
     
         14 . The method as claimed in  claim 13 , further comprising progressive transiting from a non-zero value of the motor torque setpoint towards a zero value. 
     
     
         15 . The method as claimed in  claim 13 , wherein the applying the motor torque setpoint is maintained from a start of the transition from the applied position to an end of the transition to the released position. 
     
     
         16 . The method as claimed in  claim 13 , wherein the transition of the parking brake device from the applied position to the released position, and back again, is implemented by actuating a means for controlling the parking brake device. 
     
     
         17 . The method as claimed in  claim 13 , wherein the detecting the direction of the slope is carried out when a control unit of the parking brake device is in a position of disengagement and when the parking brake device is in the applied position. 
     
     
         18 . The method as claimed in  claim 13 , wherein the detecting the direction of and/or the data for the slope further comprises determining a value of the slope. 
     
     
         19 . The method as claimed in  claim 18 , wherein the detecting the direction of and/or the data for the slope and the determining the value of the slope are concurrent. 
     
     
         20 . The method as claimed in  claim 13 , wherein the detecting the direction of and/or the data for the slope further comprises detecting a direction of tilting of the electric motor in relation to a neutral position of said electric motor. 
     
     
         21 . The method as claimed in  claim 13 , wherein the detecting the direction of and/or the data for the slope further comprises detecting a direction of rotation of a means for driving a rotor of the electric motor interacting with the parking brake device in order to immobilize the vehicle. 
     
     
         22 . The method as claimed in  claim 13 , further comprising storing the direction of and/or the detected data for the slope. 
     
     
         23 . A device for controlling a power train of a vehicle immobilized in a parking position, the vehicle being equipped with a parking brake device for immobilizing the vehicle and with at least one electric motor, the device comprising:
 means for detecting a direction of and/or data for a slope when the parking brake device is in an applied position;   means for detecting a transition of the parking brake device from the applied position to a released position; and   means for applying a motor torque setpoint to the electric motor on the basis of the detected direction of and/or the data for the slope.   
     
     
         24 . A motor vehicle, comprising:
 a power train;   a parking brake device to immobilize the vehicle in a parking position;   at least one electric motor; and   the device for controlling said power train as claimed in  claim 23 .