Abstract:
A passive entry passive start (PEPS) vehicle security system configured to activate a vehicle function when an activation signal is received. The system includes a nomadic device configured to detect a change of a magnetic field relative to the nomadic device, and emit an activation signal only if the change corresponds to walking by an operator carrying the nomadic device.
Abstract:
A lane keeping system for a vehicle includes a first roll angle sensor configured to provide a first signal indicative of dynamic vehicle body roll. A second roll angle sensor is configured to provide a second signal indicative of an angle between vehicle sprung and unsprung masses. A lane keeping system (LKS) controller is in communication with the first and second roll angle sensors. The LKS controller is configured to discern a vehicle roll angle in response to the first and second signals based upon effects of a lateral wind force on the vehicle. The LKS controller is configured to produce a correction in response to the determined lateral wind force effects to maintain the vehicle along a desired path.
Abstract:
A lane keeping system includes an absolute pressure sensor located in a door on each of opposing sides of a vehicle. Each sensor generates a signal indicative of a door cavity pressure on that side of the vehicle. A safety restraint system (SRS) controller is in communication with the pressure sensor. The SRS controller is configured to determine a collision event in response to the signal (e.g., increased pressure in the door as it is crushed) and activate a safety restraint component in response to the determined collision event. A lane keeping system (LKS) controller is in communication with the pressure sensors. The LKS controller determines a lateral wind force on the vehicle in response to the signal from each pressure sensor. The LKS controller determines a correction in response to the determined lateral wind force to maintain the vehicle along a desired path.
Abstract:
A window-anti-pinch system suitable to operate a powered-window in a vehicle includes a motor and a controller. The motor is coupled to a window by an apparatus. The motor is operable to raise the window when the motor is operated in a first-direction and lower the window when the motor is operated in a second-direction opposite the first-direction. The apparatus is characterized by slack between the motor and the window. The controller is in communication with the motor. The controller is configured to apply a slack-removal-signal to the motor prior to operation of the motor to raise the window when a most-recent-operation of the motor was effective to lower the window. The slack-removal-signal is a predetermined-waveform effective to operate the motor in the first-direction to take-up the slack but not raise the window.
Abstract:
An illustrative example method of operating a capacitive vehicle entry control device includes: determining a plurality of capacitance values of the vehicle entry control device during a measurement period; determining an average capacitance of the plurality of capacitance values; determining whether the determined average capacitance exceeds an average threshold; determining a range of the plurality of capacitance values; determining whether the determined range exceeds a range threshold; and initiating a vehicle entry process when the determined average capacitance exceeds the average threshold or when the determined range exceeds the range threshold.
Abstract:
A system for positioning a vehicle over a wireless charging station. The system includes a plurality of ultra wideband transceivers (UWBX) installed on the vehicle and the wireless charging station, and a controller configured to determine various distances between the various UWBXs.
Abstract:
A passive entry passive start (PEPS) vehicle security system configured to thwart a relay attack on the system. The system includes one or more ultra wideband transceivers (UWBX) installed on a vehicle and configured to transmit a request pulse at a request time. A mobile UWBX, possibly installed in a nomadic device such as a smart phone, is configured to transmit a reply pulse in response to the request pulse. A controller is configured to determine a distance between each UWBX and the mobile UWBX based on a time interval between the request time and a time that corresponds to when the reply pulse is received by the each UWBX. The controller may also be configured to unlock doors of the vehicle only if the distance is less than an unlock threshold.