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| Number | Title | Issue Date |
| 8180099 | Rain detection apparatus and method A rain detection apparatus and method, comprising a camera adapted to view a surface and a processor adapted to capture at least one image from the camera, in which the processor is further adapted to generate at least one signal indicative of the presence of rain o... | 05/15/2012 |
| 8106613 | Brushless motor drive A drive circuit for a motor having a plurality of phases, comprising an input for a DC signal and a plurality of phase outputs, the circuit being arranged to provide at each of the phase outputs, in use, current to one phase of the motor, in which there is provided ... | 01/31/2012 |
| 8004220 | Motor drive voltage-boost control A drive system for a motor having a rotor and a phase winding (a, b, c) comprises; a drive circuit including switch means associated with the winding a, b, c for varying the current passing through the winding; rotor position sensing means arranged to sense the posi... | 08/23/2011 |
| 7924147 | Tyre pressure monitoring apparatus A tire pressure monitoring system comprises an initiator which is arranged to transmit an initiation signal, and at least one corresponding transducer associated with a tire of the vehicle which responds to exposure of the initiation signal from the initiator and is... | 04/12/2011 |
| 7913802 | Gear assemblies In a gearbox for use in an electric power assisted steering system comprises a housing, an input shaft located at least partially within the housing which carries a worm gear and includes means for coupling to a motor rotor at one end, an output shaft located at lea... | 03/29/2011 |
| 7888831 | Rotor structures for motor A rotor structure for a motor comprising a rotor having an end surface; a shaft extending from the end surface; an encoder member attached to the end surface of the rotor; and a coupler coupled to the shaft adjacent to the encoder member for coupling a further membe... | 02/15/2011 |
| 7613326 | Method and apparatus for discriminating the colour of road markings A method of discriminating between road markings of at least two colors, comprises: capturing an image of a road and at least one road marking with a monochrome camera having a first color response in a first area of a field of view of the camera and a second color ... | 11/03/2009 |
| 7612522 | Motor drive control with a single current sensor using space vector technique A drive system for a three phase brushless AC motor is arranged to optimize the transistor switching pattern to improve power output whilst allowing current measurement in all of the phases using a single sensor. This is achieved by defining voltage demand vectors x... | 11/03/2009 |
| 7589623 | Signal apparatus for a vehicle A signal apparatus for a vehicle having at least one input at which signals are received from components associated with the vehicle. The received signals comprise an indication demand signal initiated by a driver of the vehicle and a lane detection signal produced ... | 09/15/2009 |
| 7545110 | Motor drive control A drive system for a multi-phase brushless motor comprises a single current sensor drive circuit, including switch means, switchable between a plurality of states. A controller is arranged to provide pulse width modulated drive signals to control the switch means so... | 06/09/2009 |
| 7492309 | Frequency shift keying radar with ambiguity detection A range detection apparatus comprising a transmitter adapted to transmit a microwave signal and a receiver adapted to receive an echo signal reflected from a target which corresponds to a portion of the transmitted signal; a signal generating means adapted to genera... | 02/17/2009 |
| 7433171 | Fast current control of inductive loads A circuit arrangement for the fast dissipation of the stored magnetic energy in an inductive load controlled by a first switch, comprising a high voltage-drop energy dissipation path disposed across the first switch and a second switch by which a constant-voltage di... | 10/07/2008 |
| 7308192 | Motor drive control with a single current sensor using space vector technique A drive system for a three phase brushless AC motor that is operative to optimize a transistor switching pattern to improve power output while allowing current measurement in all of the phases using a single sensor. This is achieved by defining a voltage demand vect... | 12/11/2007 |
| 7273127 | Rack force disturbance rejection A road vehicle steering system which is adapted to use measurements and estimates characterising the motion of and forces acting on the vehicle and the steering system such as to derive an estimate of steering system disturbance force and to then use the latter esti... | 09/25/2007 |
| 7239948 | Tyre pressure monitoring system A tyre pressure monitoring or warning system comprising at least one receiver responsive to signals transmitted by transmitters associated with one or more tyres. The system including a memory which stores a list of identity tags captured by the receiver, and a list... | 07/03/2007 |
| 7234564 | Haptic controller for road vehicles An electric assisted steering system for a motor driven road vehicle, having assist torque signal generating means which generates an assist torque signal for the steering system in response to the driver's applied torque and sensed vehicle speed to reduce the drive... | 06/26/2007 |
| 7209074 | Temperature compensation improvements in radar apparatus A radar-based distance measurement apparatus comprises a microwave circuit comprising a frequency generator which produces a microwave frequency signal, the frequency of which is modulated by an amount determined by a modulation signal applied to the frequency gener... | 04/24/2007 |
| 7185731 | Haptic controller for road vehicles An electric assisted steering system for a motor driven road vehicle, having assist torque signal generating means which generates an assist torque signal for the steering system in response to the driver's applied torque and sensed vehicle speed to reduce the drive... | 03/06/2007 |
| 7114373 | Fluid monitoring An apparatus for measuring the viscosity and temperature of a fluid, for example an engine oil, comprises a transducer, which is arranged to vibrate when provided with a drive signal to produce an ultrasonic shear wave; an impedance matching layer that is inserted i... | 10/03/2006 |
| 7062382 | Video enhanced stability control in road vehicles A stability control system for road vehicles comprising a limit handling assistance controller which uses video lane detection measurements in conjunction with vehicle dynamics information, including inertial brakes and steering measurements to control vehicle EPS a... | 06/13/2006 |
| 7015664 | Motor drive control A drive system for a three phase brushless motor uses an algorithm for position sensing which measures the inductance in the motor phases and determines the position from the measured inductances. In order to reduce acoustic noise, the inductances are measured durin... | 03/21/2006 |
| 6968920 | Steering control during split-mu ABS braking A vehicle stability compensation system, which is arranged to adjust dynamically the self-centering position and the steering feel of the vehicle steering system during split mu braking operation. The adjustment being based on at least one operational variable repre... | 11/29/2005 |
| 6959792 | Retraction mechanism for disc brake assembly A disc brake assembly comprises an anchor bracket (12), a brake shoe (10) which carries a friction lining (16), the shoe being slidably supported by the anchor bracket (12). The assembly includes a retraction mechanism which is adapted to... | 11/01/2005 |
| 6943540 | Multiple-channel solenoid current monitor An arrangement for monioring multiple channel solenoid currents wherein a plurality of separately controllable solenoid coils are coupled commonly by a single current measurement element to one side of a current supply. ... | 09/13/2005 |
| 6935110 | Tandem master cylinders for hydraulic systems A tandem master cylinder in which fluid under pressure is supplied to a primary outlet port from a primary pressure space in a bore between a positively actuated main piston and a floating or secondary piston, and to a secondary outlet port from a secondary pressure... | 08/30/2005 |
| 6895318 | Oversteer steering assistance controller A steering assistance controller for the generation of a compensating torque which assists the driver in overcoming the tendency of a vehicle to oversteer by encouraging the driver to steer the vehicle back to a non-steering condition through the application of said... | 05/17/2005 |
| 6824228 | Rear-axle demand for use with front push-through in electrohydraulic (EHB) braking systems An electro-hydraulic braking system of the type which operates normally 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 pedal, and... | 11/30/2004 |
