Method for holding a vehicle in the stationary state, open-loop and closed-loop control device for a brake device of a vehicle and brake device of a vehicle
AssigneeRobert Bosch GmbH
InventorFrank Baehrle-Miller
Life of this patent
Estimating the term…
Abstract
Method for holding a vehicle in the stationary state, which has the following steps: (a) if the vehicle has an automatic transmission, engaging a parking lock, or if the vehicle has a manual transmission, engaging a gear, (b) at least temporarily, automatically carrying out vehicle movement monitoring by means of a sensing device; and (c) automatically activating a brake device of the vehicle in order to apply a braking force if the sensing device signals a vehicle movement.
Claims9
A method for holding a vehicle in a stationary state, the method comprising:
- engaging one of (i) a parking lock if the vehicle has an automatic transmission and (ii) a gear if the vehicle has a manual transmission;
- automatically monitoring, at least temporarily, movement of the vehicle using a sensing device after engaging the one of the parking lock and the gear;
- and
- automatically activating a brake device of the vehicle to apply a braking force in response to the sensing device signaling a vehicle movement during the monitoring, wherein
- the brake device includes an electric parking brake and a hydraulic service brake,
- the activating includes
- applying an electrically generated braking force to at least one vehicle wheel of the vehicle and applying a hydraulic braking force to at least one vehicle wheel of the vehicle, the method further comprising:
- canceling the hydraulic braking force in response to the electrically generated braking force reaching a target braking force.
A control device, which is one of open-loop and closed-loop, for a brake device of a vehicle, the control device comprising:
- a memory;
- and
- a processor configured to:
- engage one of (i) a parking lock if the vehicle has an automatic transmission and (ii) a gear if the vehicle has a manual transmission;
- automatically monitor, at least temporarily, movement of the vehicle using a sensing device after engaging the one of the parking lock and the gear;
- and
- automatically activate a brake device of the vehicle to apply a braking force in response to the sensing device signaling a vehicle movement during the monitoring by applying an electrically generated braking force to at least one vehicle wheel of the vehicle and applying a hydraulic braking force to at least one vehicle wheel of the vehicle;
- and
- cancel the hydraulic braking force in response to the electrically generated braking force reaching a target braking force.
A brake device of a vehicle, the brake device comprising:
- a control device, which is one of open-loop and closed-loop, the control device comprising:
- a memory;
- and
- a processor configured to:
- engage one of (i) a parking lock if the vehicle has an automatic transmission and (ii) a gear if the vehicle has a manual transmission;
- determine an inclination variable that represents an inclination of the vehicle;
- automatically monitor, at least temporarily, movement of the vehicle using a sensing device after engaging the one of the parking lot and the gear;
- and
- automatically activate a brake device of the vehicle to apply a braking force in response to the sensing device signaling a vehicle movement during the monitoring,
- wherein:
- the monitoring is performed only if the inclination variable exceeds a limiting value, the monitoring further comprises
- sensing fluctuations in the inclination variable until a time limit is reached, and
- extending the time limit in response to the fluctuations exceeding a limiting value;
- and
- the monitoring movement of the vehicle is performed only until the time limit is reached.
Dependencies are inferred from the claim text.