Did You Know...
...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 8083021 | Method for operating a steering system Method for operating a steering system for a motor vehicle with at least one steerable wheel, a servo drive and a superimposed gear mechanism, the steering movement, initiated by the driver of the vehicle, and the movement for producing the steering movement of the ... | 12/27/2011 |
| 8074764 | Straddle type vehicle with electric power steering apparatus A straddle type vehicle is provided with a body frame of a vehicle, a bar handle provided in a front portion of the vehicle body frame, a steering shaft transmitting a turning operation of the bar handle to a pair of right and left front wheels, and an electric powe... | 12/13/2011 |
| 8028789 | Control adaptation of variable gear ratio steering An adaptive control VGR steering system that varies the steering gear ratio between a vehicle hand-wheel angle and the road wheel angle based on vehicle speed and one or more of hand-wheel angle, driver attentiveness and a driver's driving style and skill. ... | 10/04/2011 |
| 8002075 | Steering device for a superposition steering system A steering device for a superposition steering system is provided using at least one actuator. The device is based on the object of producing a superposition steering system which requires no additional installation space in the steering column. The actuator for the... | 08/23/2011 |
| 7967102 | Steering shaft support structure and vehicle A steering shaft support structure for an all terrain vehicle in which both forces of push and pull applied to an EPS unit are reduced when a load is applied to handlebars. The structure includes a steering shaft rotatably supported by a body frame and handlebars at... | 06/28/2011 |
| 7942232 | Electric power steering apparatus A controller samples a motor current value detected by a motor current detector at a sampling start timing for turning on a switching device to start holding in a motor current hold section, and fetches the motor current value held in the motor current hold section ... | 05/17/2011 |
| 7931113 | Steering control system for vehicle A steering control section has a first steering angle correction amount calculating section, a second steering angle correction amount calculating section, and a motor rotational angle calculating section. The first correction amount calculating section calculates a... | 04/26/2011 |
| 7891461 | Motor rotation angle detection device A motor rotation angle detection device includes a resolver which detects a rotation angle of a motor generating an assist torque for steering road wheels. The resolver includes an annular rotor disposed inside an annular stator with an air gap interposed in between... | 02/22/2011 |
| 7891460 | Gear box-typed active front steering system in vehicle According to an active front steering system (AFS) of the invention, an actuator assembly that receives steering input from a driver and AFS input from a motor is mounted to a gear box that reciprocates a rack bar connected to tie rods that are connected to wheels. ... | 02/22/2011 |
| 7878293 | Steering shaft supporting structure of vehicle To make an electrically-operated power steering unit less susceptible to influence of change in a positional relationship between supporting sections respectively at the two ends of the electrically-operated power steering unit. A gear case included in a electricall... | 02/01/2011 |
| 7845459 | Electric power steering apparatus and method for controlling the electric power steering apparatus An electric power steering apparatus includes an electric power supply device that includes a main electric power unit that supplies high-tension electric power and a sub-electric power supply unit that supplies low-tension electric power, the main electric power un... | 12/07/2010 |
| 7828111 | Power steering system A power steering system, which is disposed in the forward part of a vehicle, allows an electric motor to boost the steering torque applied by a driver, and transmits the steering torque to wheels via a steering transmission mechanism. The power steering system inclu... | 11/09/2010 |
| 7740103 | Electric power steering apparatus When a current input to a step-up voltage device of an electric power steering apparatus is equal to or higher than a first threshold current and an input voltage applied to the step-up voltage device is lower than a first threshold voltage, the step-up voltage devi... | 06/22/2010 |
| 7694777 | Electric power steering apparatus When it is determined that a malfunction has occurred in a rotational angle sensor, an electronic control unit changes the control manner from the normal assist control to the sensorless assist control. In the sensorless assist control, an assist stop command unit r... | 04/13/2010 |
| 7669689 | Electric power steering apparatus Since a rigid supporting structure for a gear box GB and a rolling type rack supporting device RSD are employed, an electric power steering apparatus having no response delay and having a high transmission efficiency can be realized. Further, a high steering perform... | 03/02/2010 |
| 7665570 | Saddle riding vehicle A weight balance of a vehicle body is provided in an all terrain vehicle wherein an engine is supported by a vehicle body frame and an electric power steering device having an actuator unit is provided on a steering shaft. An electric motor is provided in the actuat... | 02/23/2010 |
| 7648004 | Steering wheel control mechanism The present invention generally relates to control mechanisms and more specifically to a control mechanism which is adaptable to a steering wheel of a vehicle. Most control mechanisms of auto-piloting systems which must be installed on existing vehicles usually requ... | 01/19/2010 |
| 7604084 | Layout structure for motor-driven power steering unit controller To provide a layout structure for a motor-driven power steering unit controller configured to take into account the water level at which submergence of the vehicle is expected to occur. In a vehicle including a steering shaft rotatably supported on a vehicle body fr... | 10/20/2009 |
| 7581617 | Method for triggering a coupling unit A method for triggering an electromechanical coupling unit having at least two coupling windings, and a steering system for implementing the method, are provided. The coupling unit selectively closes, and in this manner provides a mechanical coupling, only if both c... | 09/01/2009 |
| 7575090 | Electric power steering device An electric power steering device provided with two belleville springs for suppressing the axial movement of a worm rotated by a steering-assisting electric motor and having shaft portions at its both end portions, and limiting members for limiting the deflection am... | 08/18/2009 |
| 7549503 | Steering device In a steering device 10, the upper side portion of a rubber boot 120 is fixedly fitted on a case outer cylindrical component 41 of a cable case 39, and the lower side portion of the rubber boot 120 is fixed to a dashboard 100 | 06/23/2009 |
| 7481293 | Power steering apparatus in vehicle having handlebar and vehicle having handlebar A power steering apparatus for being protected from mud or dust, or rainwater. A sub-steering unit is provided together with a torque sensor of the power steering apparatus used in a vehicle. A steering shaft portion includes an input shaft and an output shaft, each... | 01/27/2009 |
| 7433767 | Steering control device and steering control method of motor vehicle A first system and a second system include a first motor and a second motor for driving a steering mechanism in dependence on the rotational manipulation of a steering wheel. A first ECU and a second ECU mutually monitor abnormalities of the systems each to stop an ... | 10/07/2008 |
| 7431117 | Steering control apparatus A steering control apparatus for an automotive vehicle is provided with s steering control system 41 that comprises a detected steering angle calculating section for calculating a detected steering angle θj based on a variation of a motor rotational angle de... | 10/07/2008 |
| 7426428 | Steering apparatus for vehicle and method for controlling the same A vehicle steering apparatus includes a drive unit for changing a steering angle of a steered wheel. A calculation unit calculates a control target amount of the steering angle based on a vehicle model. A control unit controls the drive unit to change the steering a... | 09/16/2008 |
| 7418327 | Method for determining a control standard of an active vehicle steering device controllable by a control device A method for determining a control standard of an active steering device (10) of a vehicle (1) controllable by a control device (11). A driving dynamic of the vehicle (1) is influenced according to the control standard. The control standa... | 08/26/2008 |
| 7412906 | Steering system torque sensor A sensor apparatus for a power steering system on a vehicle, where the apparatus includes an input shaft for receiving a steering input and for rotating about a rotational axis. An output shaft is provided for transmitting the steering input from the input shaft to ... | 08/19/2008 |
| 7406374 | Steering ratio control system of vehicle A steering ratio control system of a vehicle includes a variable steering ratio mechanism variably adjusting a steering ratio of a steer angle at left and right steered road wheels to a steering-wheel rotation angle, and a braking/driving force control unit individu... | 07/29/2008 |
| 7401678 | Electric power steering system A curved leaf spring which is a first urging member surrounds an outer wheel of a second bearing, and urges, through the second bearing, a second end of a worm shaft in a direction in which the distance between the center of the worm shaft and the center of a worm w... | 07/22/2008 |
| 7395142 | Counter steer detecting method The counter steer detecting method includes the steps of detecting a steering angle by a steering angle sensor, detecting a lateral acceleration by a lateral acceleration sensor, and determining counter steer according to the steering angle detected by the steering ... | 07/01/2008 |
| 7389851 | Electric power steering apparatus An electric power steering apparatus controlling an operation of an electric motor by a control unit based on a torque signal from a torque sensor and executing a steering assist of a steering shaft via a reduction mechanism. The control unit includes a power supply... | 06/24/2008 |
| 7383111 | Steering apparatus A steering apparatus for a vehicle includes a steering angle measuring unit, a vehicle speed measuring unit, a yaw rate measuring unit, a yaw rate-based reaction force control unit for controlling a steering reaction force depending on an actual yaw rate measured by... | 06/03/2008 |
| 7382150 | Sensitivity switchable detection circuit and method A sensitivity switchable detection circuit includes a high gain circuit for outputting a first signal, a low gain circuit for outputting a second signal, and an output switching circuit for switching between the first signal and the second signal. When the first sig... | 06/03/2008 |
| 7379802 | Method of damping the parasitic vibrations coming from the front axle assembly of a motor vehicle The invention relates to a method for motor vehicles provided with an electrical sero steering controlled by an electronic processor. The method comprises using an electrical signal within the processor which has at least one component image of the parasite vibratio... | 05/27/2008 |
| 7377355 | Motor-driven power steering apparatus for a vehicle In a motor-driven power steering apparatus for a vehicle in which a worm wheel of a worm gear type speed reduction mechanism is fixed to a pinion shaft of a rack and pinion mechanism, a direction of a torsion angle β of a helical pinion provided in the pinion shaft... | 05/27/2008 |
| 7373230 | Steering assist apparatus and method for vehicle Characteristic lines A to D of lateral acceleration G-required torque T in determination of required torque T are used as switched according to increase/decrease of the absolute value of the lateral acceleration, and the direction thereof. The lines A, C used in inc... | 05/13/2008 |
| 7364006 | Steering system with leads and pulls compensation A power assist steering system including a valve housing and a proportional control valve supported within the valve housing, further includes a pressure transducer arranged with respect to the proportional control valve for determining an amount of actuation of the... | 04/29/2008 |
| 7366599 | Electric power steering apparatus An electric power steering apparatus that performs steering assist by transmitting a driving force produced by an electric motor to a steering mechanism. The apparatus is provided with a current detection circuit for detecting a current flowing through the electric ... | 04/29/2008 |
| 7363825 | Non-contact position sensor housing using existing torque sensor probe A sensors casing supports torque sensors and the position sensors and segment magneto-sensitive elements to detect the relative rotation between an input shaft and an output shaft and the angular position of the shaftsin a steering column housing. The sensor casing ... | 04/29/2008 |
| 7365511 | Methods to control high speed electric machines having a front-end EMI filter attached A system and method for extracting estimated input voltage and input current values of an AC motor based on sensed power inverter output voltage and output current when the AC motor is connected to a front-end EMI filter and the EMI filter is connected to a power in... | 04/29/2008 |
