A method for operating an electric parking brake includes determining a fault relating to a first control unit which in a normal operating mode operates the electric parking brake. The method further includes operating a second control unit in an emergency operating mode as a function of the determined fault and determining a state for an operator control element of the parking brake using the second control unit and operating the parking brake as a first function of the determined state of the operator control element using the second control unit in the emergency operating mode.

A method for operating an electric parking brake includes determining a fault relating to a first control unit which in a normal operating mode operates the electric parking brake. The method further includes operating a second control unit in an emergency operating mode as a function of the determined fault and determining a state for an operator control element of the parking brake using the second control unit and operating the parking brake as a first function of the determined state of the operator control element using the second control unit in the emergency operating mode.

A vehicle pedal device including a transmission member that transmits an operation force applied to a pedal, a reaction force lever that is disposed on the transmission member so that the reaction force lever pivots about a predetermined axis, and that outputs the operation force transmitted to the transmission member to a brake device against a biasing force of a load spring, and a depressing force detector that is fixedly attached to a pedal arm of the pedal or to a sub lever coupled to the pedal arm and that receives a reaction force of the reaction force lever to detect the operation force applied to the pedal, the depressing force detector being configured to have a positioning pin projecting from the depressing force detector, the pedal arm of the pedal or the sub lever coupled to the pedal arm being configured to have a positioning pin insertion hole in which the positioning pin of the depressing force detector is inserted, the depressing force detector being configured to be fixed to the pedal arm or the sub lever with the positioning pin being pressed against an inner peripheral edge of the positioning pin insertion hole by a reaction force of the load spring, and the load spring being fixedly positioned between the reaction force lever and the depressing force detector.

In a pedal device, a pedal is attached to a housing, and a reaction force generating unit is configured to apply a reaction force to the pedal against a load given by a braking operation due to elastic deformation when the posture of the pedal changes from a reference position in a first direction by the braking operation, and to restore a position of the pedal to the reference position by the reaction force when the braking operation is released. A pedal restoring unit is provided in parallel with the reaction force generating unit, and configured to be elastically deformed according to a change amount in the posture of the pedal, and to apply a restoring force to the pedal to bring the position of the pedal closer to the reference position by changing the posture of the pedal in the second direction when the braking operation is released.

In a specific state where an electric vehicle is in a stop state and a creep torque is generate in an electric motor (2), when a shift range is switched from a traveling range to a non-traveling range, a motor control section (10B) performs a torque decrease control to stepwisely decrease the creep torque of the electric motor (2), and an automatic transmission control device (30) performs a disengagement control to gradually disengage the frictional engagement element of the automatic transmission (3).

An electromechanical brake booster for a motor vehicle, at least one support element being fastened on a gear unit housing bottom of the gear unit, which extends along its respective longitudinal axis, a bearing device being situated on the spindle, which supports the spindle on the least one support element in such away that the bearing device is able to guide the spindle, which is set into translatory motion, at a distance from the first support element along the at least one support element. A brake system is also described.

A vehicle comprises a control system. The control system is connectable to a trailer and includes a trailer connection checking mode in which the control system actuates trailer lights of the trailer in a predetermined sequence. The control system makes a trailer presence determination of whether the trailer is connected to the control system. According to the trailer presence determination, the control system performs the trailer connection checking mode.

A vehicle comprises a control system. The control system is connectable to a trailer and includes a trailer connection checking mode in which the control system actuates trailer lights of the trailer in a predetermined sequence. The control system makes a trailer presence determination of whether the trailer is connected to the control system. According to the trailer presence determination, the control system performs the trailer connection checking mode.

A communication system includes wired communication devices onboard vehicles of a vehicle system, wireless communication devices disposed onboard other vehicles, and a controller. The controller remotely controls movement of some vehicles via communication with the wired communication devices and establishes a wireless communication link with other vehicles. The controller remotely controls movement of the other vehicles via wireless communication responsive to these vehicles being connected to the vehicle system for temporarily assisting in vehicle system movement along one or more routes. These vehicles are configured to be disconnected from wired communication with the other vehicles subsequent to being connected to the vehicle system. The wireless communication link is in addition to any wireless communication links established in the vehicle system prior to the one or more second vehicles being connected to the vehicle system.

A communication system includes wired communication devices onboard vehicles of a vehicle system, wireless communication devices disposed onboard other vehicles, and a controller. The controller remotely controls movement of some vehicles via communication with the wired communication devices and establishes a wireless communication link with other vehicles. The controller remotely controls movement of the other vehicles via wireless communication responsive to these vehicles being connected to the vehicle system for temporarily assisting in vehicle system movement along one or more routes. These vehicles are configured to be disconnected from wired communication with the other vehicles subsequent to being connected to the vehicle system. The wireless communication link is in addition to any wireless communication links established in the vehicle system prior to the one or more second vehicles being connected to the vehicle system.