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8132867 |
Brake control apparatus
A brake control apparatus includes a braking force applying apparatus for applying a braking force to each of a plurality of wheels adapted to a vehicle, a braking force testing device for testing...
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7484815 |
Brake device of motorcycle
To enable a trouble diagnosis of braking-input-side pressure sensors even in a state where a braking input side and a braking output side are interrupted from each other. In a brake device of a...
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7415325 |
Method and apparatus for data interchange between a tractor vehicle and a trailer vehicle
A method and apparatus for data interchange between a tractor vehicle and a trailer vehicle coupled thereto. A first electronic device provided in or on the tractor is connected via a data link to...
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7013209 |
Operating a multimode ABS
A vehicle anti-lock brake system determines when an ABS failure condition has occurred, configures a failure condition operating mode of the ABS control, and, finally, activates the ABS control...
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6970772 |
Method and system for exchanging data in a vehicle train via a PLC data bus
A method for exchanging data in a vehicle train having a tractor, at least one trailer coupled to the tractor, and vehicle electronics allocated to the tractor and trailer interconnected via a PLC...
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6945611 |
Braking system for vehicle provided with ABS or an anti-skid protection system
The general principle underlying the invention is a braking system that is provided with an arithmetic unit with at least two independent channels for determining the reference speeds approximated...
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6915200 |
Abnormality determining device for longitudinal acceleration sensor for vehicle and method thereof
An abnormality determining device for a longitudinal acceleration sensor for a vehicle has: a first acceleration estimating unit based on a wheel speed; a second acceleration estimating unit based...
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6823251 |
Microprocessor system for safety-critical control systems
A microprocessor system for safety-critical control operations includes at least three central units which are preferably located jointly on one chip and execute the same program. Further, there is...
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6698848 |
Time reset safety timer circuit
The time reset safety timer circuit eliminates approximately half of the external interfaces of the prior art safety timers. The prior art safety timers depend on vehicle axle speeds, brake...
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6701230 |
Method and system for monitoring the wheels of a vehicle
A method for monitoring the wheels (R1, R2, R3, R4) of a motor vehicle (10) for fault states, in particular for incorrect tire pressures, comprises the steps of: each wheel (E1, E2, E3, E4) to be...
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6443539 |
Algorithm for preventing wheel speed sneakdown on a low mu surface
The duration and average deceleration of a vehicle wheel are measured during a wheel speed departure and compared to duration and deceleration thresholds to determined if a wheel sneakdown...
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6438481 |
Selectable trims for a control system algorithm
A method of selecting a performance trim set for a control algorithm from multiple performance trims sets contained in a read only memory. The selected trim set is used by a control system for a...
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6364427 |
Automotive brake control system
There is provided an automotive brake control system capable of executing ABS control (skid control), in which when an abnormality such as superimposition of noise on the output of a wheel speed...
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6354676 |
Method for controlling electronic braking force distribution
Electronic braking force distribution control initiation is properly judged. Upon pressurizing the brake pedal, if the estimated vehicle deceleration or the vehicle wheel deceleration becomes...
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6272417 |
Vehicle braking system
A vehicle braking system including a controller, in an initial anti-skid cycle, performs a first determination to select a high or a low control mode in accordance with wheel speed parameters. The...
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6202019 |
Method of improving ABS control behavior
In a method of improving the control behavior of an anti-lock control system, criteria for identifying a cornering situation and the direction of curve are obtained from the rotating behavior of...
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6122588 |
Vehicle speed control with continuously variable braking torque
A system and method for reducing speed of a vehicle to maintain a target vehicle speed include determining an actual vehicle speed, comparing the target vehicle speed to the actual vehicle speed to...
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6045199 |
Brake valve control method
A brake valve control method to control the operation of the brake valves is provided in which an error check can be made with one arithmetic logic unit. Signals from a wheel speed sensor are...
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5991672 |
Vehicle anti-lock brake system demonstration
A diagnostic readout tool can be programmed to generate and deliver electronic signals representative of different road wheel slippage conditions on various road surfaces, such as ice, snow, gravel...
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5978725 |
Brake control apparatus
A brake control apparatus switches the braking mode from an auto-braking mode to a manual braking mode when a braking operation is carried out. The braking control apparatus includes a mode...
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5752751 |
Anti-skid control apparatus with brake failure detection means
A vehicular anti-skid control apparatus comprises a differential pressure detector for detecting the pressure difference inside brake lines of separate brake channels, a brake failure detector for...
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5729476 |
Method of error recognition for rotary speed sensors
Methods for recognizing a malfunction of a rotary speed sensor, for instance a wheel-speed sensor in an ABS system, are proposed; on the basis of the signals of the rotary speed sensor, wheel...
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5707119 |
Stability control device of vehicle adaptive to failure of wheel speed sensor
A stability control device of a vehicle having an estimator for identifying a tendency of the vehicle body toward running instability when, for example, the vehicle is making a turn, and for...
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5697679 |
Anti-lock control computer malfunction detecting device
An anti-lock controller is used in an anti-lock control system for detecting a locked condition of a wheel of a vehicle based on wheel rotation speed signal which are pulse signals. The anti-lock...
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5671981 |
Sensor malfunction detecting system in vehicle control system
In a sensor malfunction detecting system, if an absolute value of a difference between acceleration values obtained from outputs of at least two of a pressure sensor a torque sensor, and a speed...
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5645328 |
Early activation recovery control method and system for vehicle anti-lock brake system
A control method and system for a vehicle anti-lock brake system to provide for recovery from premature activation of the vehicle anti-lock brake system. The control system includes a...
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5615934 |
Method and system for detecting aquaplaning of a vehicle in an anti-lock brake system
Methods and systems for detecting aquaplaning of a vehicle both before and during braking in a vehicle anti-lock brake system (ABS) when the front wheels experience deep and substantial slip and...
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5562327 |
Circuit configuration for detecting wheel sensor malfunctions
A circuit configuration for detecting wheel sensor malfunctions includes circuits which process and analyze the sensor signals (s1 to s4), which ascertain the speed (vRmax, vRmin), deceleration and...
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5551768 |
Circuit configuration for dectecting wheel sensor malfunctions
A circuit configuration for detecting wheel sensor malfunctions includes circuits which process and analyze the sensor signals (s1 to s4), which ascertain the speed (vRmax, vRmin), deceleration and...
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5515278 |
Circuit for controlling, monitoring, and terminating control of, inductive loads, particularly magnetic valves in an anti-lock control system
A circuit has circuit amplifiers (T1, T2) and inductive loads (MV1, MV2) with the circuit amplifiers being controlled by control signals provided by a microcomputer (MC). The circuit accomplishes...
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5431488 |
Early activation recovery control method and system for vehicle anti-lock brake system
A control method and system for a vehicle anti-lock brake system to provide for recovery from premature activation of the vehicle anti-lock brake system. The control method includes the steps of...
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5277482 |
Antilock braking system
A reference speed signal approximating the vehicle speed is generated from the wheel speed signals. Wheel slippage signals are generated from the wheel speed signals and the reference speed signal,...
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5138556 |
Malfunction detector for antiskid controller and speed sensor
An antiskid control device including a wheel speed detecting member, an antiskid processor member for performing arithmetic operation on the basis of a wheel speed signal from the wheel speed...
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4999779 |
Axle health discriminatory safety timer arrangement for controlling wheel slip on a multiple-axle railway vehicle
An axle health discriminatory safety timer arrangement for a railway vehicle braking system including a first logic network connected to a pair of safety timers. The pair of safety timers being...
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4980832 |
Fail-safe system for an anti-skid control system for an automotive brake system
An anti-skid brake control system is designed to periodically generate short commands ordering an APPLICATION mode operation to increase braking pressure while the system operates in a RELEASE...
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4972145 |
Speed sensor gap fault-detection arrangement for multiple-axle rail vehicles
A magnetic speed sensor air gap fault-detection arrangement having a two-input AND gate for each of the two-axle trucks of a railway vehicle for conditioning a gap process circuit common to each...
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4969695 |
Detection of abnormality for rotational speed sensor
In an apparatus for detecting the abnormality of a rotational speed sensor adapted for, for example, an anti-skid control system, a time period within which a subsequent pulse will be generated by...
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4955671 |
Antiskid control device
An antiskid control device is for use with the brake assembly of a motor vehicle. It includes a program for detecting any malfunction of wheel speed sensors of the non-driven wheels. The program is...
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4926683 |
Method of testing a set of wheel speed sensors forming parts of an anti-lock brake control system
A set of wheel speed sensors forming parts of an anti-lock brake control system are tested for proper connection and operation when mounted on a motor vehicle. A check signal is first input to a...
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4884056 |
System for displaying trouble in an electronic control system of a motor vehicle
A system for displaying trouble in an electronic control system such as an anti-skid brake system of a motor vehicle. The system has a detector for detecting failure in a wheel speed sensor, and a...
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4876527 |
Vehicle speed detecting device
A vehicle speed detecting device utilizes two vehicle speed pulse generators, a vehicle speed memory device, pulse counters, abnormality detectors, pulse signal transfer devices and an alarm device...
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4841446 |
Method for monitoring the operations of an electromechanical control system that ensures the adhesion of wheels of a motor vehicle
The proper functioning of a control system (such as an ABS, ASR) that secures the adhesion of the wheels, by analyzing wheel rotating speed signals, is determined by comparing acceleration signals...
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4836616 |
Antilock brake system
A antilock brake system utilizes a microprocessor controller to monitor the rate of speed decay of a braked wheel of a vehicle and to cause release of braking force under incipient wheel lock-up...
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4547022 |
Hydraulic anti-skid braking systems for vehicles
An `X` split hydraulic anti-skid braking system for a four-wheel vehicle, incorporates four skid sensors for providing skid signals dependent upon the behavior of respective wheel, a modulator...
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4472778 |
Vehicle anti-skid braking systems
A vehicle anti-skid braking system, particularly for articulated vehicles, in which a fail-safe device is incorporated to disable the braking-releasing function if a skid signal is generated during...
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4345796 |
Anti-skid brake control system for controlling the two pairs of diagonally opposed wheels of a motor vehicle
A wheel anti-skid brake control system for controlling the braking effort of the four wheels of a motor vehicle. The system includes a speed sensor, an electronic evaluating circuit, a monitoring...
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4335430 |
Control and compensation device in an anti-skid control system
A control and compensation device in an anti-skid control system in which wheel speed detectors detect peripheral speeds of wheels to produce wheel speed signals. A main control circuit receives...
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4316641 |
Circuit for the shutdown of an anti-lockup protected vehicle brake unit in case of disturbance
An improved vehicle wheel anti-lockup brake control system in which a shutdown signal is generated to disable the wheel anti-lockup control system in the event of a malfunction, as determined by...
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4280740 |
Skid prevention method and an anti-skid brake device
A skid prevention method for reducing braking torque during a wheel lock while braking, using a main control system of an anti-skid brake device regardless of the brake input by the driver. When...
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4270809 |
Device for diagnosing trouble in a control circuit for electromagnetic actuators
A trouble diagnosing device for diagnosing a fault in a control circuit for controlling a plurality of electromagnetic actuators in an operating system such as a brake system. The control circuit...
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