Delphi Technologies, Inc.

Delco Electronics Corporation

Gm Global Technolgoy Operations, Inc.

Kevin Michael Deasy

Adil Ansari

Daniel E Utley

Gordon D Cheever, Jr

Ronald Melvin Taylor

Scott Alan Millsap

Robert Allan Perisho, Jr

Siddharth S Rege

Craig A Hennings

Stephen E Ewbank

A detecting device for a vehicle and method thereof is provided. The device includes a first infrared detector, a second infared detector, and a controller. The first infrared detector is configured to repeatedly measure a temperature of a first target area by receiving infrared radiation of the first target area over a sampling period. The second infrared detector is configured to repeatedly measure a temperature of a second target area by receiving infrared radiation of the second target area over the sampling period. The controller is configured to receive and store the plurality of first and second signals, wherein the controller repeatedly compares a plurality of correlation values to a predetermined tolerance range above a minimum threshold value, wherein the correlation values are determined by repeatedly comparing a plurality of time delayed signals of the second plurality of signals to a real time signal of the plurality of first signals.

Apparatus and method for thermal side detection in a vehicle

A diagnostic method for a blind-zone sensing system including leading and trailing passive IR sensors periodically determines a separation distance between coverage areas of the leading and trailing sensors to diagnose sensor alignment. Signals produced by the leading and trailing sensors are sampled and stored over a defined interval of time for processing. A condition in which the sensor coverage areas abruptly encounter a stationary region of cooler temperature is detected when corresponding signal deflections are identified. The elapsed time between the identified signal deflections is measured and used along with an accurate measure of the vehicle speed to compute the separation distance between coverage areas of the leading and trailing sensors.

Sensor alignment detection method for an infrared blind-zone sensing system

An automotive steer-by-wire system is disclosed that includes a first network. The first network connects a first set of controllers for controlling a first set of motors. The steer-by-wire system further includes a second network that is independent of the first network and connects a second set of controllers for controlling a second set of motors. The steer-by-wire system includes a third network that connects the first set of controllers and the second set of controllers for controlling the first or second set of motors if the first or second network is inoperative, whereby information is transmitted via the third network independent of the first network and the second network.

Redundant steer-by-wire system

The present invention provides for a wheel alignment procedure for a vehicle having a steer-by-wire steering system. The wheel alignment procedure includes determining an offset alignment value for a road wheel of a vehicle. The offset alignment value may be determined as the difference between the sensed wheel angle and a measured true angular position of the road wheel. The method further includes the step of adjusting the road wheel position as a function of the offset alignment value. Accordingly, the vehicle road wheel can be aligned by adjusting a calibration value in a controller without requiring physical adjustment of a mechanical linkage.

Wheel alignment system and method for vehicles having steer-by-wire

A multi-processor AC motor control system having a timer processor which generates multiple synchronized PWM waveforms while minimizing software latency effects. The timer processor generates a 50% PWM duty cycle sync signal at the PWM frequency, creating a logic level transition (leading edge) in each PWM period. At each such transition, the timer processor interrupts the host processor for the purpose of updating a multi-byte timer data register with PWM on-time data stored in nonvolatile memory as a function of machine position and requested current. A separate timer channel is provided for each PWM waveform to be generated, and the timer processor sets off-to-on and on-to-off transitions of each waveform in accordance with the updated PWM on-time data such that respective off-to-on and on-to-off transitions in each waveform are centered about the leading edges of the sync signal. If the on-time is 0% or 100%, the timer processor overrides the normal instruction set and forces the logic state of the waveforms to a full-off or full-on logic state.

Micro-controller based PWM waveform generation for a multiple phase AC

An improved digital PWM closed-loop current control for a multiple phase winding AC machine which requires only a single sensor for monitoring the current in one of the phase windings of the machine. The PWM on-time values for the various phase windings of the machine are stored in a single look-up table as a function of stator position and requested current amplitude, and the on-times used to schedule phase winding energization are periodically updated using a two-part look-up procedure. Initially, the stored on-time value for a single phase winding is retrieved from the table as a function of stator position and the requested current amplitude. The retrieved value is then compared with a measure of the actual current in the respective phase winding to form an error signal, which is used to adjust the requested current amplitude. The requested current amplitude, as adjusted, is then used, along with the stator position, as a table look-up parameter to retrieve PWM on-times for all three phase windings, thereby automatically adjusting multiple phase winding currents in a balanced fashion.

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Noblesville, IN, United States of America

Kevin Michael Deasy