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| Number | Title | Issue Date |
| 7520573 | Shadow zone fault detection The output of a wheel speed sensor is sampled at dithered time intervals and the samples used to construct a pair of histograms representing high and low sample values. A minimum voltage threshold is determined as a function of the output voltage associated with the... | 04/21/2009 |
| 7421327 | Drivetrain protection and management system A drivetrain protection and management system (DPMS) monitors and determines individual wheel speeds to detect wheel spin and slip conditions on a drive axle. Wheel spin is caused by low surface friction, excessive input torque, lack of inter-axle differential and d... | 09/02/2008 |
| 7401869 | Architecture for an airplane braking system including two computers and capable of withstanding two breakdowns, and a method of managing such an architecture The invention relates to an architecture for a braking system for an airplane fitted with a plurality of undercarriages each carrying a plurality of wheels, at least some of which are fitted with brakes, the architecture comprising at least two braking computers eac... | 07/22/2008 |
| 7380891 | Power supply apparatus for vehicle A power supply apparatus for a vehicle. An electronic controller outputs information for controlling braking of a vehicle. A battery supplies electric power to a brake via the electronic controller. A power supply backup unit as an auxiliary power supply includes a ... | 06/03/2008 |
| 7374253 | Method for monitoring the air bleeding quality of an electrohydraulic braking system The invention discloses a method for determining the air content of the brake fluid in a hydraulic braking system. This method also permits determining the quality of the bleeding of the braking system. The principle of the method is a comparison of the volum... | 05/20/2008 |
| 7366970 | Method and test device for detecting addressing errors in control units The invention relates to a method for detecting addressing errors in control devices of motor vehicles, whereby test data are input into all addressable memory cells by means of a present model, then read out and compared with the test data. ... | 04/29/2008 |
| 7347506 | Arrangement and method for activating an emergency brake function within a vehicle Method and apparatus for activation of an emergency brake function (8; 8′) within a vehicle (1) when a first brake circuit and a second brake circuit are out of order. A first sensor (20; 20′) is included for detecting whether the pressure (... | 03/25/2008 |
| 7306296 | Failure check apparatus for control apparatus of vehicle A failure check apparatus for a control apparatus of a vehicle such as ABS. When the failure check apparatus performs initial check for the ABS, it successively activates each of solenoid valves and a motor provided in the ABS, one at a time, for a predetermined tim... | 12/11/2007 |
| 7305587 | Electronic control unit for monitoring a microcomputer An ECU (100, 200) includes a monitoring circuit (2) having a counter (3) for selecting an assignment number (21) of an assignment signal (20), a serial communicating unit (4) for transmitting the assignment signal (20... | 12/04/2007 |
| 7222698 | Elevator arrangement The present invention relates to a method and a system for testing the condition of the brakes of an elevator. In the method, a test weight is set to apply to the drive machine of the elevator, by means of which weight a first torque required for driving the elevato... | 05/29/2007 |
| 7027939 | Method and circuit for detecting a fault of semiconductor circuit elements and use thereof in electronic regulators of braking force and of dynamics movement of vehicles A circuit for detecting a defect of electronic components in an electronic control unit includes an output for driving a load (3). A redundant measurement of the current (IL) is executed at the contacts (G, S, D), in particular at the driven contac... | 04/11/2006 |
| 7002314 | Electric brake system The present invention provides an electric brake system which detects the occurrence of overshooting, and corrects a feedback gain in the PID feedback control at overshooting. For example, it increases a differential gain Kd. Accordingly, a damping force increases f... | 02/21/2006 |
| 6964455 | Vehicle anti-lock brake system and method An anti-lock brake system for a tri-axle wheeled vehicle equipped with wheel speed sensors and modulators for adjusting brake pressure. The modulators are actuated by a six-channel electronic control unit. The modulators associated with the front axle of the vehicle... | 11/15/2005 |
| 6961648 | System and method for desensitizing the activation criteria of a rollover control system A method of densensitizing includes determining a relative roll angle, determining when the vehicle is in a transitional maneuver, and when the vehicle is in a transitional maneuver, setting a roll signal for control to the relative roll angle, reducing control effo... | 11/01/2005 |
| 6935707 | Vehicle anti-lock brake system and method An anti-lock brake system for a tri-axle wheeled vehicle equipped with wheel speed sensors and modulators for adjusting brake pressure. The modulators are actuated by a six-channel electronic control unit. The modulators associated with the front axle of the vehicle... | 08/30/2005 |
| 6672687 | Vehicle motion control device A vehicle motion control device which detects an abnormality of an automatic hydraulic pressure generator having a master cylinder, a booster which boosts the master cylinder and a booster actuator which actuates the booster irrespective of brake pedal op... | 01/06/2004 |
| 6557952 | Remote control unit for electric wheel brake controller A remote manual control is provided for an electronic wheel brake controller. The remote manual control is connected to the wheel brake controller with a cable having quick disconnect connectors at each end. Accordingly, cables having different lengths ma... | 05/06/2003 |
| 6450588 | Vehicular brake-by-wire system The present invention provides an improved torque actuator control system using data inputs from an operator controlled input transducer relating to the desired torque output of a controlled member and inputs concerning the directly measured speed and tor... | 09/17/2002 |
| 6398319 | Driver warning of braking malfunction in electro-hydraulic (EHB) braking systems An electro-hydraulic braking system of the type capable of operating in a brake-by-wire mode wherein hydraulic pressure is applied to braking devices at the vehicle wheels in proportion to the driver's braking demand as sensed electronically at a brake pe... | 06/04/2002 |
| 6398318 | Method and device for monitoring a braking system contained in a vehicle A method for monitoring a braking system contained in a vehicle. The braking system includes at least one brake circuit. The brake circuit, on the output side, contains valve configurations, to which wheel brake cylinders allocated to the brake circuit ar... | 06/04/2002 |
| 6382740 | Protective circuit for a controlling element and method for testing the control circuit of a controlling element The invention relates to a circuit arrangement of a circuit of an electrically controlled brake force booster, including a first and a second line that supply two potentials to the connections of the actuator, an electronically actuated first switch provi... | 05/07/2002 |
| 6293632 | Vehicular brake-by-wire system The present invention provides an improved torque actuator control system using data inputs from an operator controlled input transducer relating to the desired torque output of a controlled member and inputs concerning the directly measured speed and tor... | 09/25/2001 |
| 6290309 | Spring brake actuation for electronically controlled brake system An electronically controlled brake system includes a brake actuator wherein a valve is electrically controlled to maintain the spring chamber in the non-actuated position during normal operation. However, should there be a failure in the electrical system... | 09/18/2001 |
| 6227626 | Method and device for controlling a motor vehicle drive train A device and a method control units arranged in the power train of a motor vehicle. The vehicle has electrically actuated, wheel brakes, preferably designed with one or two motors. A control arrangement is provided that controls the functions of at least ... | 05/08/2001 |
| 6206489 | Method and device for check-testing a braking system A method and a device for check-testing a braking system in which, before travel commences, a self-test of the braking system is performed. During the course of the self-test, the valve arrangements allocated to the wheel brakes and the pressure supply pr... | 03/27/2001 |
| 6158822 | Method and apparatus for diagnosing electrically operated brake without manual operation of brake operating member A method of diagnosing an electrically operated brake for abnormality thereof in an automotive vehicle wherein a wheel is braked by a friction force generated by an electric motor of the brake upon an operation of a brake operating member, the method comp... | 12/12/2000 |
| 6082834 | Circuit arrangement for a brake system with anti-lock control and traction slip control A circuit arrangement for a brake system having anti-lock control (ABS) and traction slip control by brake management (BASR) which has an electromotively driven hydraulic pump for the auxiliary pressure supply in the ABS mode and BASR mode, sensors to det... | 07/04/2000 |
| 5988773 | Replacement-period detection method and vehicle control apparatus capable of notifying replacement period of actuator A total conductance time with respect to each of control actuators is calculated. It is determined whether each of the control actuators has reached a replacement period by determining whether the total conductance time has exceeded a determination value ... | 11/23/1999 |
| 5941612 | Method and apparatus for testing an ABS electronic control unit microprocessor A controller for a hydraulic control system includes a microprocessor having a diagnostic routine. The diagnostic routine is operable to exercise an arithmetic logic unit within the microprocessor to verify that the arithmetic logic unit is functioning pr... | 08/24/1999 |
| 5899540 | Brake system including anti-lock control and electronic brake force distribution A brake system including electronic anti-lock control (ABS) and electronically controlled brake force distribution (EBV). This brake system has electrically operable hydraulic valves, of which the inlet valves are open in their inactive position. An elect... | 05/04/1999 |
| 5819193 | Circuit arrangement for conditioning and evaluating wheel sensor signals A circuit arrangement for conditioning and evaluating the signals emanating from wheel sensors in a first stage determines the sensor(s) supplying the highest useful signal at very low wheel speeds. The signal from the most sensitive sensor is delivered w... | 10/06/1998 |
| 5775783 | Anti-lock braking system capable of recording the operating conditions of elements thereof and recording method therefor An anti-lock braking system as well as the method thereof, is capable of recording the operating conditions of elements thereof. The anti-lock braking system includes a microcomputer having first and second memories. The method includes a step for resetti... | 07/07/1998 |
| 5757641 | Triplex control system with sensor failure compensation A triplex control system provides automatic compensation for a sensor bias failure in one channel while continuing to process all sensor readout signals. The triplex control system includes first through third non-linear feedback channel processors, each ... | 05/26/1998 |
| 5713643 | Control circuit for automotive vehicle motion control systems A control circuit for use with an automotive vehicle motion control system such as an anti-lock control (ABS) for an automotive vehicle brake system and/or traction slip control (TCS) includes circuits for processing sensor signals and for generating brak... | 02/03/1998 |
| 5707117 | Active brake control diagnostic A comprehensive diagnostic for an active brake control system for automatically increasing braking at selected wheels of an automotive vehicle in response to detected vehicle turning maneuvers provides a hierarchy of diagnostic procedures for diagnosing l... | 01/13/1998 |
| 5649749 | Brake system fault mode generator A fault controller for a brake system includes a control display having a plurality of identifying labels displayed thereon corresponding to predetermined brake system fault mode options. A plurality of switches corresponding to the identifying labels and... | 07/22/1997 |
| 5632533 | Brake system fault mode generator A fault controller for a brake system has a control display with a plurality of identifying labels displayed thereon which correspond to predetermined brake system fault options. A plurality of switches corresponding to the identifying labels and selectiv... | 05/27/1997 |
| 5588720 | Circuit arrangement for a brake system with anti-lock system and/or traction control In a circuit arrangement for a brake system with anti-lock system and/or traction control with input circuits, output circuits, control circuits, monitoring circuits, comparator circuits and circuits for switching off the control in the event of a fault, ... | 12/31/1996 |
| 5558415 | Method of enhancing the reliablity in operation of a brake system with electronic control of the brake force distribution To enhance the reliability of a brake system with electronic control of the brake force distribution, a short pressure reduction pulse, which is negligible for the braking process, is applied to the front wheels (VR, VL) during a braking operation, and th... | 09/24/1996 |
| 5558414 | Vehicle braking system capable of controlling pump for optimum rate of change of brake cylinder pressure A vehicle braking system including, a pump operated by a pump actuator driven by a DC power source, an electrically operated pressure control device having operating states which are selectively established to electrically control the fluid pressure in wh... | 09/24/1996 |
