Control logic for an anti-lock vehicle brake system
First Claim
1. A method for controlling brakes of an anti-lock protected vehicle braking system comprising generating signals within an electronic device for a wheel deceleration, a wheel acceleration, and a wheel slip said electronic device having a standard automatic control logic for modulating brake pressure during time periods under normal operating conditions of the vehicle and having a special automatic control logic for modulating brake pressure during an all-terrain operating state of the vehicle;
- switching to the special automatic control logic on with an all-terrain switch, wherein the special automatic control logic is furnished for all-terrain operation;
generating additional time periods with the special automatic control logic during which a short-term locking of the automatically controlled wheels occurs based on signals furnished by the special automatic control logic to thereby modulate the brake pressure.
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Accused Products
Abstract
An automatic control logic for an anti-lock protected vehicle braking plants is provided for all-terrain operation. In this case, the standard automatic control logic for road operation is switched, by the driver with an all-terrain switch (13) to a special automatic control logic for all-terrain operation. The special automatic control logic generates time periods, during which a short-term blocking of the automatically controlled wheels (12) is intentionally permitted. The locking time periods have a time duration of about 240 ms. The braking distance of the vehicle in cross-country terrain is shortened while a sufficient cornering force remains based on the all-terrain automatic control logic.
30 Citations
41 Claims
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1. A method for controlling brakes of an anti-lock protected vehicle braking system comprising generating signals within an electronic device for a wheel deceleration, a wheel acceleration, and a wheel slip said electronic device having a standard automatic control logic for modulating brake pressure during time periods under normal operating conditions of the vehicle and having a special automatic control logic for modulating brake pressure during an all-terrain operating state of the vehicle;
switching to the special automatic control logic on with an all-terrain switch, wherein the special automatic control logic is furnished for all-terrain operation;
generating additional time periods with the special automatic control logic during which a short-term locking of the automatically controlled wheels occurs based on signals furnished by the special automatic control logic to thereby modulate the brake pressure.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An automatic control circuit for an anti-lock protected vehicle braking system comprising
a wheel speed sensor having an output and for monitoring the wheel speed and for delivering a signal corresponding to the wheel speed through said output; -
a signal processing stage having an input connected to the output of the wheel speed sensor for generating signals corresponding to a wheel deceleration, a wheel acceleration, and a wheel slip, said signal processing stage having a standard automatic control logic for modulating brake pressure during time periods under normal operating conditions of the vehicle and having a special automatic control logic for modulating brake pressure during an all-terrain operating state of the vehicle and wherein the special automatic control circuit is adapted to control all-terrain operation; an all-terrain switch connected to the signal processing stage, wherein the driver can switch on the special automatic control circuit with the all-terrain switch; control means for actuating the special automatic control circuit such that additional time periods are generated during which a short-term locking of an automatically controlled wheel occurs to thereby modulate a brake pressure. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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- 29. An automatic control logic for an anti-lock protected vehicle braking system, wherein signals are generated within the electronic device for a wheel deceleration, a wheel acceleration, and a wheel slip, said electronic device including a standard automatic control logic for modulating brake pressure during time periods under normal operating conditions of the vehicle and having a special automatic control logic for modulating brake pressure during an all-terrain operating state of the vehicle, wherein the additional special automatic control logic and, a special programming part, respectively, is furnished for all-terrain operation, which special automatic control logic is switched on by a driver with an all-terrain switch (13) to thereby modulate the brake pressure, and which special automatic control logic is formed such that additional time periods are generated during which a short-term locking of the automatically controlled wheels (12) occurs.
Specification