초록
▼
A control device for a braking system of a vehicle is provided, having a first receiving device which receives a provided brake activation intensity variable, a plunger control device which determines a setpoint fill level variable of a plunger, taking into account at least the received brake activation intensity variable, and a corresponding plunger control signal is outputtable so that a ratio of an actual volume and a maximum fillable volume of a storage volume of the plunger is settable corresponding to the determined setpoint fill level variable. Fo...
A control device for a braking system of a vehicle is provided, having a first receiving device which receives a provided brake activation intensity variable, a plunger control device which determines a setpoint fill level variable of a plunger, taking into account at least the received brake activation intensity variable, and a corresponding plunger control signal is outputtable so that a ratio of an actual volume and a maximum fillable volume of a storage volume of the plunger is settable corresponding to the determined setpoint fill level variable. For a brake activation intensity variable corresponding to a predefined non-activation intensity variable, the plunger control device determines a fill level variable different from an empty state as the setpoint fill level variable, and outputs a plunger control signal corresponding to the determined setpoint fill level variable to the plunger such that the plunger is at least partially filled.
대표
청구항
▼
1. A control device for a braking system of a vehicle, comprising: a first receiving device, with which a provided brake activation intensity variable concerning an activation intensity of an activation of a brake activation element situated on the braking system is receivable; anda plunger control device, with which a setpoint fill level variable of a plunger is determinable, taking into account at least the received brake activation intensity variable, and a plunger control signal corresponding to the determined setpoint fill level variable is outputta...
1. A control device for a braking system of a vehicle, comprising: a first receiving device, with which a provided brake activation intensity variable concerning an activation intensity of an activation of a brake activation element situated on the braking system is receivable; anda plunger control device, with which a setpoint fill level variable of a plunger is determinable, taking into account at least the received brake activation intensity variable, and a plunger control signal corresponding to the determined setpoint fill level variable is outputtable to the plunger, so that a ratio of an actual volume of liquid that is filled into a storage volume of the plunger and a maximum volume that is fillable into the storage volume is settable corresponding to the determined setpoint fill level variable;wherein for a brake activation intensity variable corresponding to a predefined non-activation intensity variable, the plunger control device is designed to determine a fill level variable which differs from an empty state of the plunger as the setpoint fill level variable, and to output a plunger control signal corresponding to the determined setpoint fill level variable to the plunger such that the plunger is at least partially filled. 2. The control device according to claim 1, wherein, for a brake activation intensity variable corresponding to the non-activation intensity variable, the plunger control device is designed to determine a fill level variable of at least 20% as the setpoint fill level variable, and to output a plunger control signal corresponding to the determined fill level variable to the plunger, such that the actual volume of liquid that is filled into the storage volume is settable to at least 20% of the maximum volume. 3. The control device according to claim 2, wherein for a brake activation intensity variable corresponding to the non-activation intensity variable, the plunger control device is designed to determine a fill level variable of at least 50% as the setpoint fill level variable, and to output a plunger control signal corresponding to the determined fill level variable to the plunger, such that the actual volume of liquid that is filled into the storage volume is settable to at least 50% of the maximum volume. 4. The control device according to claim 3, wherein for a brake activation intensity variable corresponding to the non-activation intensity variable, the plunger control device is designed to determine a fill level variable of at least 70% as the setpoint fill level variable. 5. The control device according to claim 4, wherein for a brake activation intensity variable corresponding to the non-activation intensity variable, the plunger control device is designed to determine a fill level variable of at least 90% as the setpoint fill level variable. 6. The control device according to claim 1, wherein for a brake activation intensity variable between the non-activation intensity variable and a predefined first limiting activation intensity variable, the plunger control device is also designed to determine the setpoint fill level variable as a continuously decreasing function of the brake activation intensity variable. 7. The control device according to claim 6, wherein for a brake activation intensity variable between a predefined second limiting activation intensity variable, which is greater than or equal to the first limiting activation intensity variable, and a predefined third limiting activation intensity variable, the plunger control device is also designed to determine the setpoint fill level variable as a continuously increasing function of the brake activation intensity variable. 8. The control device according to claim 1, wherein the control device includes a second receiving device, with which a provided blending variable concerning a change over time of a braking torque to be blended is receivable, and the plunger control device is also designed to reduce the setpoint fill level variable when the braking torque to be blended decreases over time. 9. The control device according to claim 8, wherein the plunger control device is also designed to increase the setpoint fill level variable when there is an increase over time of the braking torque to be blended, or to determine a setpoint intake volume of a storage chamber of the braking system corresponding to the increase over time, and to output a storage control signal, which corresponds to the setpoint intake volume, to a control unit of the storage chamber. 10. The control device according to claim 1, wherein the control device includes a third receiving device, with which a provided change of travel direction variable concerning a change of direction of travel of a vehicle equipped with the control device is receivable, and the plunger control device is also designed to compare the received change of travel direction variable to at least one predefined comparative angle variable, and for a brake activation intensity variable which differs from the non-activation intensity variable, if the change of travel direction variable is less than the comparative angle variable, to determine a first fill level variable as the setpoint fill level variable, taking the brake activation intensity variable into account, and if the change of travel direction variable is greater than the comparative angle variable, to determine a second fill level variable which is less than the first fill level variable as the setpoint fill level variable, taking the brake activation intensity variable into account. 11. The control device according to claim 1, wherein the control device includes a fourth receiving device, with which a provided use intensity variable concerning at least one of a duration and an intensity of a use of at least one of the plunger and the braking system is receivable, and the plunger control device is also designed to compare the received use intensity variable to at least one predefined comparative use intensity variable, and for a brake activation intensity variable which differs from the non-activation intensity variable, if the use intensity variable is less than the comparative use intensity variable, to determine a third fill level variable as the setpoint fill level variable, taking the brake activation intensity variable into account, and if the use intensity variable is greater than the comparative use intensity variable, to determine a fourth fill level variable which is less than the third fill level variable as the setpoint fill level variable, taking the brake activation intensity variable into account. 12. A braking system for a vehicle, comprising: a master brake cylinder;at least one wheel brake caliper which is hydraulically connected to the master brake cylinder;at least one plunger which is hydraulically connected to the at least one wheel brake caliper; andthe control device according to claim 1. 13. A method for operating a braking system of a vehicle, comprising: determining a setpoint fill level of a plunger, taking into account at least one activation intensity of an activation of a brake activation element situated on the braking system;controlling the plunger corresponding to the determined setpoint fill level so that a ratio of an actual volume of liquid that is filled into a storage volume of the plunger and a maximum volume that is fillable into the storage volume is set corresponding to the determined setpoint fill level;comparing the brake activation intensity to a predefined non-activation intensity;if the brake activation intensity corresponds to the non-activation intensity, determining a fill level which differs from an empty state of the plunger as the setpoint fill level; andcontrolling the plunger corresponding to the determined fill level so that the plunger is at least partially filled. 14. The method according to claim 13, wherein a fill level of at least 50% is determined as the setpoint fill level, and the plunger is controlled, corresponding to the determined fill level of at least 50%, in such a way that the actual volume of liquid that is filled into the storage volume is set to at least 50% of the maximum volume. 15. The method according to claim 13, wherein for a brake activation intensity between the non-activation intensity and a predefined first limiting activation intensity, the setpoint fill level is determined as a continuously decreasing function of the brake activation intensity, and for a brake activation intensity between a predefined second limiting activation intensity, which is greater than or equal to the first limiting activation intensity, and a predefined third limiting activation intensity, the setpoint fill level is determined as a continuously increasing function of the brake activation intensity. 16. The method according to claim 13, wherein a change over time of a braking torque to be blended is ascertained, and the setpoint fill level is reduced when the braking torque to be blended decreases over time, and when there is an increase over time of the braking torque to be blended, a setpoint intake volume of a storage chamber of the braking system corresponding to the increase over time is determined, and the storage chamber is controlled to draw in an actual intake volume which corresponds to the setpoint intake volume. 17. The method according to claim 13, wherein an exceedance of a predefined comparative angle variable is checked upon a change in travel direction of a vehicle, and if no exceedance of the predefined comparative angle variable is ascertained, for the next brake activation intensity which differs from the non-activation intensity, a first fill level is determined as the setpoint fill level, taking the brake activation intensity into account, and after an exceedance of the predefined comparative angle variable, for the next brake activation intensity which differs from the non-activation intensity, a second fill level which is less than the first fill level is determined as the setpoint fill level, taking the brake activation intensity into account. 18. The method according to claim 13, wherein an exceedance of a predefined comparative use intensity variable due to at least one of a duration and an intensity of a use of at least one of the plunger and of the braking system is checked, and if no exceedance of the predefined comparative use intensity variable is ascertained, for the next brake activation intensity which differs from the non-activation intensity, a third fill level is determined as the setpoint fill level, taking the brake activation intensity into account, and after an exceedance of the predefined comparative use intensity variable, for the next brake activation intensity which differs from the non-activation intensity, a fourth fill level which is less than the third fill level is determined as the setpoint fill level, taking the brake activation intensity into account.
