Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 8100482 | Brake hydraulic pressure control apparatus for vehicle A brake hydraulic pressure control apparatus for a vehicle includes anti-skid control means for executing an anti-skid control including a pressure reducing control and a pressure increasing control for one of front wheels at which an anti-skid control start conditi... | 01/24/2012 |
| 7775608 | Method for controlling a brake pressure A method for controlling a brake pressure in at least two wheel brakes preferably mounted on one axle of the vehicle, is performed during a braking operation on a road surface having a heterogeneous coefficient of friction. This method works as follows: ... | 08/17/2010 |
| 7401871 | Method of controlling an automotive vehicle having a trailer using rear axle slip angle A system and method of controlling a vehicle with a trailer comprises determining the presence of a trailer, determining a vehicle velocity, determining a steering wheel angle, and determining a rear axle side slip angle. When the rear axle side slip angle is above ... | 07/22/2008 |
| 7401870 | Method and apparatus to enhance brake-steer of a vehicle using a controllable suspension component A system and method of controlling an automotive vehicle having a controllable suspension component includes applying brake-steer to at least one wheel, generating a suspension control signal in response to the brake-steer signal, and allowing at least one wheel cou... | 07/22/2008 |
| 7353096 | Diagnosis monitoring device for yaw rate sensor A yaw rate sensor failure diagnosing device judges whether the yaw rate sensor is failure or not. In particular, when the vehicle is in the steady turn state, the failure is judged by comparing a yaw rate value from the yaw rate sensor with a yaw rate value calculat... | 04/01/2008 |
| 7331642 | Method for applying torque overlay during split-mu braking conditions A method is provided for vehicle stability control of a vehicle where the vehicle includes a slip control braking system that applies independent braking pressure to respective vehicle brakes of the vehicle. The vehicle further includes a steering system for applyin... | 02/19/2008 |
| 7316288 | All terrain vehicle with multiple steering modes Methods and apparatus for steering a vehicle are disclosed. A vehicle in accordance with an exemplary embodiment of the present invention is capable of operating in a first steering mode and a second steering mode. The vehicle may comprise an input device capable of... | 01/08/2008 |
| 7315777 | Vehicle control method and vehicle control apparatus A target resultant force to be applied to a vehicle body is calculated, the magnitude of a critical friction circle of each wheel is estimated, and a critical resultant force is estimated from the estimated magnitude of the critical friction circle. Subsequently, a ... | 01/01/2008 |
| 7266437 | Temperature dependent trigger control for a traction control system A method a operating a traction control system using a traction controller (30) for an automotive vehicle (10) is provided. A slip target is first determined. Then, an operating temperature turning characteristic or slope of the slip curve may, in comb... | 09/04/2007 |
| 7171296 | Integrated control apparatus for vehicle An electronic control unit calculates a target yaw rate in accordance with a vehicle speed and a steering angle and calculates the yaw rate difference on the basis of the target yaw rate and an actual yaw rate. The electronic control unit estimates the grip factor o... | 01/30/2007 |
| 7104615 | Vehicle motion control apparatus The present invention is directed to a vehicle motion control apparatus, which includes a hydraulic pressure regulating device disposed between a master cylinder and a pair of wheel brake cylinders included in each of a dual hydraulic circuit, and a monitor for moni... | 09/12/2006 |
| 7097262 | Braking force control apparatus and method for vehicle In braking force control apparatus and method for an automotive vehicle, a front-and-rear road wheel braking force distribution determining section determinatively distributes a front-and-rear road wheel braking force at a front-and-rear road wheel braking force dis... | 08/29/2006 |
| 7069135 | Estimating maximum friction coefficient based on knowledge of the loads and self-alignment torque generated in a tire contact zone A method for estimation of the maximum grip coefficient on the basis of knowledge of the forces and the self-alignment torque which are generated in the contact area of a tire, includes the steps of: selecting a plurality of fixed ... | 06/27/2006 |
| 7035725 | Sliding integral proportional (SIP) controller for aircraft skid control The sliding, integral, and proportional controller for providing aircraft antiskid braking control includes a reference velocity subsystem, a velocity error ratio subsystem, and a main controller subsystem generating a control command output signal indicative of a c... | 04/25/2006 |
| 7035726 | Steering characteristic control apparatus and method for a vehicle A steering characteristic control apparatus and method for a vehicle is disclosed which can carry out behavior control of the vehicle regarding a steering characteristic and so forth appropriately in accordance with the type of turning and the road surface situation... | 04/25/2006 |
| 7013208 | Sliding integral proportional (SIP) controller for aircraft skid control The sliding, integral, and proportional controller for providing aircraft antiskid braking control includes a reference velocity subsystem, a velocity error ratio subsystem, and a main controller subsystem generating a control command output signal indicative of a c... | 03/14/2006 |
| 6957873 | Method for regulating the driving stability of a vehicle In a method for regulating the driving stability of a vehicle pressures for individual brakes of the vehicle are determined in dependence on several input quantities so that the driving stability is enhanced by brake interventions at individual wheels. To enhance th... | 10/25/2005 |
| 6952635 | Road condition estimation apparatus The present invention is directed to a road condition estimation apparatus for estimating a road condition for use in a vehicle having a steering control unit for actuating a device mechanically independent of a manually operated steering member to steer at least a ... | 10/04/2005 |
| 6941213 | Road condition estimation apparatus The present invention is directed to a road condition estimation apparatus for estimating a road condition for use in a vehicle having steering control unit for actuating a device mechanically independent of a manually operated steering member to steer each wheel. T... | 09/06/2005 |
| 6928355 | Vehicular antiskid control apparatus and antiskid control method If a condition for starting a yaw control during an antiskid control is met while the antiskid control is being executed on one of right and left front wheels during braking on a uneven friction-coeffient road surface, the reference value for making the determinatio... | 08/09/2005 |
| 6890041 | Antilock brake systems employing a sliding mode observer based estimation of differential wheel torque Improved methods and systems for controlling hydraulically or electrically actuated anti-lock brake systems (ABS) on air and land vehicles requiring only measurement of wheel angular speed although brake torque measurements can also be employed if available. A slidi... | 05/10/2005 |
| 6880900 | Brake control system and method for vehicle A target wheel cylinder pressure for each wheel is calculated according to an amount of braking operation performed by a vehicle operator. When anti-skid control is required, the wheel cylinder pressure is controlled to be equal to the target wheel cylinder pressure... | 04/19/2005 |
| 6866349 | Traction control system including individual slip threshold reduction of the drive wheel on the outside of the curve A vehicle traction control system having capabilities for braking intervention and coefficient of friction detection is provided, a slipping wheel being braked by braking intervention if a slip threshold is exceeded. In order to improve the lateral stability of the ... | 03/15/2005 |
| 6742851 | Method and device for detecting a braking situation A detection device for detecting braking of a vehicle during cornering on a road surface where the coefficient of friction of the road surface on a wheel on the outside of a curve is lower than on a wheel on the inside of the curve includes a comparison device for c... | 06/01/2004 |
| 6684147 | Sliding integral proportional (SIP) controller for aircraft skid control The sliding, integral, and proportional controller for providing aircraft antiskid braking control includes a reference velocity subsystem, a velocity error ratio subsystem, and a main controller subsystem generating a control command output signal indica... | 01/27/2004 |
| 6681168 | Traction control device and a method for controlling the slip of a wheel A traction control device for a vehicle that has at least one axle, to which two driven wheels are assigned, the traction control device, when one of the driven wheels of the axle shows a tendency to spin, regulating the kinematic behavior of the wheel te... | 01/20/2004 |
| 6663113 | System and method for reducing stopping distance and improving traction in motor vehicles A method for improving the traction between a road surface and a motor vehicle having a pair of front wheels and a pair of rear wheels which engage the road, each front wheel mounted on a front axle, each rear wheel mounted on a rear axle, one of the axle... | 12/16/2003 |
| 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 |
| 6547343 | Brake system control A brake system control method, comprising the steps of: measuring a set of vehicle parameters including steering wheel angle, vehicle speed, lateral acceleration and vehicle yaw rate; responsive to the measured parameters using an observer to estimate lat... | 04/15/2003 |
| 6533367 | System for controlling the traction slip of a vehicle A method for controlling the traction slip of a vehicle on a roadway with sidewise different coefficients of friction includes the following steps: identifying a driving situation on a roadway with sidewise different coefficients of friction and, when the... | 03/18/2003 |
| 6502018 | Method for diagnosis of equipment A method of predicting failures in equipment including at least one sensor for generating sensor data corresponding to a sensed parameter. The method includes monitoring the sensor data during normal operation of the equipment. The sensor data during norm... | 12/31/2002 |
| 6445153 | Method and system for adjusting headway in an adaptive speed control system based on road surface coefficient of friction In an adaptive speed control system for a vehicle, a method and system for automatically adjusting a selected following interval for the vehicle based on driving conditions is provided. The method includes determining a driving surface coefficient of fric... | 09/03/2002 |
| 6415215 | Vehicle attitude control apparatus In a vehicle attitude control apparatus, a steering actuator is controlled so that a steering angle matches a target steering angle. In an understeer condition; the braking force on the inside wheels is increased and drive power applied to the outside whe... | 07/02/2002 |
| 6415212 | Steering device for vehicle In a steering device for a vehicle, the movement of a steering actuator driven by operation of an operating member is transmitted to vehicle wheels, in such a manner that the steering angle changes, without the operating member being coupled mechanically ... | 07/02/2002 |
| 6375280 | Method and device for adjusting the braking action in a motor vehicle A method and a device for adjusting a braking action at wheels of a motor vehicle are described. In response to a detected μ-split situation, a reduction of the braking action at a low wheel of a rear axle is brought about as a function of a reduction of... | 04/23/2002 |
| 6349998 | Method of controlling the travel behavior of a vehicle A method of controlling travel behavior of a vehicle provides assistance to the driver of the vehicle before the occurrence of travel conditions which are difficult to control. A vehicle taking a curve tends not to follow the travel curve indicated by ste... | 02/26/2002 |
| 6292735 | Wheelslip regulating brake control Wheelslip is controlled in an automotive vehicle having at least one wheel for which control is desired. Each wheel is controlled by a corresponding element of a command wheelslip vector. The method includes determining a minimizing wheelslip vector minim... | 09/18/2001 |
| 6285153 | Method and system for adjusting headway in an adaptive speed control system based on road surface coefficient of friction In an adaptive speed control system for a vehicle, a method and system for automatically adjusting a selected following interval for the vehicle based on driving conditions is provided. The method includes determining a driving surface coefficient of fric... | 09/04/2001 |
| 6241324 | Method of controlling anti-lock brake system for vehicles and method of finding control point in ABS In an anti-lock brake system mounted on a vehicle wherein when the vehicle is braked in an emergency during running, an increase in the road surface friction force or road surface friction coefficient owing to an increase in the brake pressure is detected... | 06/05/2001 |
| 6226587 | Stability control system for automotive vehicle An automotive vehicle stability control system determined which is a main cause of a change in a change rate of a yaw rate difference of an actual yaw rate from a target yaw rate between a change in the actual yaw rate and a change in the target yaw rate ... | 05/01/2001 |
