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| Number | Title | Issue Date |
| 7481501 | Anti-lock brake system and sensor unit for the same An anti-lock brake system and a sensor unit for the system, where acceleration occurring in a wheel is easily detected with high accuracy to perform braking control of a motor vehicle. Sensor units (100) having acceleration sensors that detect acceleration oc... | 01/27/2009 |
| 7240972 | Maximum road friction force estimating device and brake torque control device A brake torque control device obtains inertia torque Tine based upon an equation of motion (Tine=Tw−Ft·Rt) about the rotation of a tire based upon a wheel torque Tw according to a brake torque exerted on the tire, road friction force Ft and a radius Rt of the tir... | 07/10/2007 |
| 7039517 | Brake control system According to the present invention, there is provided a method and system for providing brake control, autobrake and antiskid brake functionality by recognizing that the only difference between the three functions is the amount of deceleration they allow. Unlike a c... | 05/02/2006 |
| 6572202 | Vehicle brake control system and method therefor A method and brake control system that calculates a target brake pressure of each wheel based on a braking amount by a vehicle operator and a product of a lateral acceleration of the vehicle and a vehicle speed. The brake control system comprises a first ... | 06/03/2003 |
| 6457785 | Brake control apparatus for vehicle A characteristic changing device is adopted in the inventive brake control system for the vehicle. The characteristic changing device sets a differential pressure between a first brake hydraulic pressure which is applied to wheel cylinders and a second br... | 10/01/2002 |
| 6428118 | Arrangement and methods for avoiding rollovers when braking or accelerating motor vehicles An arrangement for avoiding rollovers when accelerating motor vehicles, single-track or double-track vehicles such as motorcycles or passenger cars in particular, with an arrangement for comparing a difference in rotational speed between the speed of at l... | 08/06/2002 |
| 6315373 | Roll control device of vehicle manageable of sudden failure of rolling condition detection means A roll control device of a vehicle for executing a roll suppress braking according to a detection of a rolling condition of the vehicle so that the braking is executed when the rolling condition increases beyond a first threshold value and the braking is ... | 11/13/2001 |
| 6305760 | Behavior control device of vehicle checking occasionally normal operation of longitudinal acc. sensor A behavior control device of a vehicle including a longitudinal acceleration sensor has a judgment system for judging if the longitudinal acceleration sensor is operating normally by comparing an output of the acceleration sensor with a corresponding long... | 10/23/2001 |
| 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 the vehicle wheels. For cornering identification, the wheel ... | 03/13/2001 |
| 5951122 | Antiskid control and wheel lock protection differential reference controller A brake control system which employs an antiskid control and wheel lock protection differential reference controller to provide antiskid and antilock brake control. The differential reference controller is capable of estimating both wheel velocity and veh... | 09/14/1999 |
| 5601346 | Anti-skidding process and device for vehicles The present invention relates to a process and a device for the prevention of skidding in vehicles with at least two wheels (1-4) of which at least one (1, 4) is steerable, wherein the actual rotary acceleration of the vehicle along its vertical axis is m... | 02/11/1997 |
| 5579230 | Vehicle speed estimation for antilock braking using a chassis accelerometer Before braking occurs the speed of non-driven wheels is monitored and averaged to determine vehicle speed and an integrator is initialized with that speed. Acceleration is periodically calculated from the vehicle speed, stored in a ring buffer and average... | 11/26/1996 |
| 5482361 | Brake system with adjustably variable front/rear axle braking force distribution A brake system has a variable front/rear axle braking force distribution for a racing car. An electrohydraulic braking force control device with an electronic computer stage is provided in the system to take account of the aerodynamic axle load changes oc... | 01/09/1996 |
| 5482360 | Anti-lock brake control system An ABS for an all-wheel-drive vehicle in which the wheel slip is included in the instability criterion. The gradient of the reference speed required for determining the wheel slip is limited, when the vehicle is accelerating, to the measured acceleration ... | 01/09/1996 |
| 5474368 | Anti-skid braking method and system An anti-skid braking method is provided for controlling, on the basis of a slip ratio of a wheel and an acceleration of the wheel, braking force to be applied to the wheel. The anti-skid braking method comprises the following steps: where the slip ratio i... | 12/12/1995 |
| 5423601 | Anti-lock brake system and drive-slip control system An anti-lock brake system and an anti-slip control system are described which are particularly favorable for cross-country driving, the vehicle deceleration or vehicle acceleration determined by way of the wheel speeds being compared with the vehicle dece... | 06/13/1995 |
| 5415469 | Brake system A vehicle brake system is described in which a lower brake pressure is fed in at the rear axle compared with the brake pressure of the front wheels. For the purpose of feeding in this brake pressure, the difference VD between the fastest front wheel speed... | 05/16/1995 |
| 5372411 | Safety equipment for a motor vehicle Common control apparatus provided for ABS/ABSR and an occupant restraint system processes the sensor signals redundantly in two parallel channels, the system-specific user programs being worked in multiplex.... | 12/13/1994 |
| 5369585 | Anti-lock control system for motor vehicles An anti-lock control system in which a pressure increasing cycle changes according to the behavior of a wheel during a pressure increasing mode of anti-lock control. The anti-lock control system determines a coefficient of friction of a road surface, sets... | 11/29/1994 |
| 5280432 | Anti-skid brake control system based on acceleration detection The anti-skid control system is constructed with a brake fluid pressure source for generating brake fluid pressure at high and low levers, a switching valve feeding either high pressure or low pressure to the wheel cylinders, a wheel velocity detecting de... | 01/18/1994 |
| 5267166 | Vehicle travel direction estimating device A vehicle travel direction estimating device is provided which has a wheel speed calculating device for calculating the speed and acceleration Aw of a vehicle. In addition, a gravity-type accelerometer is provided for producing a gravitationally detected ... | 11/30/1993 |
| 5210690 | Anti-skid control system for vehicle A first estimated vehicle speed is calculated on the basis of the highest of the speeds of the wheels and the deceleration of the vehicle. A second estimated vehicle speed which begins to reduce from a predetermined value at a predetermined rate independe... | 05/11/1993 |
| 5141294 | Anti-skid brake control system An anti-skid brake control system for a motor vehicle includes at least one sensor for determining the deceleration VR of a vehicle wheel, a device for determining the deceleration VF of the vehicle, a device for determining the diff... | 08/25/1992 |
| 4974163 | Anti-skid brake control system with derivation of precise projected vehicle body speed data utilizing longitudinal acceleration exerted on the vehicle body An anti-skid brake control system comprises a limiter which provides an upper limit of variation of wheel speed indicative data. The limited wheel speed indicative data is derived with respect to each wheel. The greatest limited wheel speed indicative dat... | 11/27/1990 |
| 4964047 | Anti-skid brake control system for automotive brake system with projection of vehicular speed representative data on the basis of longitudinal acceleration exerted on vehicle body An anti-skid brake control system employs a technique for correcting a longitudinally based vehicular speed variation gradient by a road slop dependent correction value. The road slop dependent correction value is derived on the basis of an assumed road s... | 10/16/1990 |
| 4336592 | Antiskid control system for brakes which exhibit large changes in lining friction coefficient An antiskid control system is presented which includes variable gains to compensate for brakes which exhibit large changes in lining friction coefficient. Fundamentally, the invention includes a pressure transducer and associated amplifier which presents ... | 06/22/1982 |
| 4333146 | Device for eliminating the vehicle wheel locking risk at braking A device for eliminating the locking risk of vehicle wheels at the application of a braking force, comprises an accelerometer mounted on a non-rotary portion connected with the wheel axle for emitting continuously, in response to the motions of the mounti... | 06/01/1982 |
| 4180223 | Limited-slip brake control system A limited-slip brake control system includes a basic deceleration control circuit responsive to a wheel deceleration signal and to a selected reference deceleration signal to provide a first brake control signal which is used to modulate brake pressure ap... | 12/25/1979 |
| 4033635 | Electronic control devices applicable to anti-skid equipment in automobile vehicles The present invention refers to an electronic control device applicable to anti-skid equipment in automobile vehicles which compares the speed of the wheel with a voltage corresponding to the level of optimum vehicle-wheel slip. On the basis of the result... | 07/05/1977 |
| 4007971 | Anti-skid control system for vehicles An anti-skid control system for vehicles wherein, in view of the fact that while it is desirable for a vehicle anti-skid control system to detect the speed of the vehicle body and the speed of the wheel to positively prevent the skidding of the vehicle, i... | 02/15/1977 |
