Method and Device for Controlling a Vehicle

A device for controlling a vehicle, the device comprising:

• a detection unit that detects a switch-off signal indicative of a command to switch off the ignition of a drive assembly of the vehicle,
• a meter that measures a voltage value of an on-board power system voltage in an on-board power system of the vehicle when the switch-off signal is detected,
• a comparison unit that compares the measured voltage value with a predetermined voltage threshold value,
• a control unit that switches an assistance system of the vehicle into an emergency operating state and/or for keeping the steering wheel in an unlocked state when the measured voltage value exceeds the predetermined voltage threshold value.

An on-board power system of a vehicle, the on board power system comprising:

• an assistance system for controlling the vehicle which, in dependence on a vehicle state, can be switched between a normal operating state, a switched-off state and an emergency operating state,
• a steering wheel locking arrangement for locking/unlocking a steering wheel of the vehicle,
• a detection unit that detects a switch-off signal indicative of a command to switch off the ignition of a drive assembly of the vehicle,
• a meter that measures a voltage value of an on-board power system voltage in an on-board power system of the vehicle when the switch-off signal is detected,
• a comparison unit that compares the measured voltage value with a predetermined voltage threshold value,
• a control unit that switches an assistance system of the vehicle into an emergency operating state and/or for keeping the steering wheel in an unlocked state when the measured voltage value exceeds the predetermined voltage threshold value.

A vehicle comprising:

• a steering wheel,
• an assistance system for controlling the vehicle which, in dependence on a vehicle state, can be switched between a normal operating state, a switched-off state and an emergency operating state,
• a steering wheel locking arrangement for locking/unlocking the steering wheel,
• a detection unit that detects a switch-off signal indicative of a command to switch off the ignition of a drive assembly of the vehicle,
• a meter that measures a voltage value of an on-board power system voltage in an on-board power system of the vehicle when the switch-off signal is detected,
• a comparison unit that compares the measured voltage value with a predetermined voltage threshold value,
• a control unit that switches an assistance system of the vehicle into an emergency operating state and/or for keeping the steering wheel in an unlocked state when the measured voltage value exceeds the predetermined voltage threshold value.