Method and device for controlling a pump of a brake system

A method for driving a pump brake system having a clocked signal, comprising the steps of:

• a) setting a maximum pump off-time of the pump per each drive cycle of the pump;
• and
• b) maintaining a minimum pump on-time of the pump per each drive cycle,
• wherein an activation of the pump is dependent on a voltage drop across a motor of the pump and a comparison of the voltage drop to at least one predetermined voltage threshold value.

A method for driving a pump brake system having a clocked signal, comprising the steps of:

• a) setting a maximum pump off-time of the pump per each drive cycle of the pump;
• b) maintaining a minimum pump on-time of the pump per each drive cycle;
• c) checking if a voltage drop across a motor of the pump reaches a voltage threshold at a predetermined interval;
• and
• d) when the voltage drop reaches the voltage threshold, connecting the pump to a power supply for a selectable time period.

A method for driving a pump brake system having a clocked signal, comprising the steps of:

• a) setting a maximum pump off-time of the pump per each drive cycle of the pump;
• b) maintaining a minimum pump on-time of the pump per each drive cycle;
• and
• e) utilizing a different number of threshold values representing a voltage drop across the pump to set the maximum pump-off time and maintain the minimum pump-on time.

A method for driving a pump of a brake system having a clocked signal, comprising the steps of:

• a) setting a maximum pump off-time of the pump per each drive cycle of the pump;
• b) maintaining a minimum pump on-time of the pump per each drive cycle;
• g) applying at least one selectable drive cycle to the pump using a first control system;
• h) after step (g), connecting the pump to a power supply for a selectable time period in at least one second control system, the at least one selectable drive cycle being superimposed on the first control system;
• and
• j) reconnecting the pump to the power supply using at least one:
• I. a determination of whether a select high mode or a select low mode is active,
• II. a detection of a single-sided control mode,
• III. a detection of a two-sided control mode,
• IV. a determination indicating that at least one pressure threshold is exceeded by at least one estimated pressure quantity in the brake system during a pressure drop or a pressure rise,
• V. a positive system deviation in at least one active control system which at least one of influences a braking action and increases a driving stability or safety,
• VI. an initialization of a pressure module that indicates an imminent pump driving action, and
• VII. an end of a selectable maximum pump off-time per each of the at least one selectable drive cycle, wherein steps (a) and (b) are performed by a brake arrangement which encompasses the brake system, the brake arrangement including control systems which at least one of influence a braking action and increase a driving stability or safety.

A method for driving a pump of a brake system, comprising the steps of:

• a) receiving a pump request;
• b) after step (a), applying a selectable drive cycle to the pump, the selectable drive cycle being constant for at least one time interval and being formed from the sum of a pulse and pause intervals;
• c) connecting the pump to a power supply for a first selectable time period;
• d) after step (c), reconnecting the pump to the power supply for a second selectable time period during the selectable drive cycle as a function of at least one condition;
• and
• e) after step (c), suppressing the selectable drive cycle for the second selectable time period,
• wherein the at least one condition is subjected to a preventive evaluation before the pump is subjected to an increased load.