摘要:
A vehicle comprises a trailer angle detection apparatus and a trailer backup control system. The trailer angle detection apparatus is configured for outputting hitch angle information generated as a function of an angle between the vehicle and a trailer towably attached thereto. The trailer backup control system includes a jackknife enabling condition detector and a jackknife counter-measures controller coupled to the trailer angle detection apparatus. The jackknife enabling condition detector is coupled to the trailer angle detection apparatus for receiving the hitch angle information therefrom and for determining if a jackknife enabling condition has been attained at a particular point in time during backing of the trailer by the vehicle. The jackknife counter-measures controller implements a vehicle speed reducing action in response to the jackknife enabling condition detector determining that the jackknife enabling condition has been attained at the particular point in time during backing of the trailer.
摘要:
A system and method for compensating ultrasonic sensors mounted on a vehicle for speed of sound variations. The ultrasonic sensor is operatively coupled to a power train control module having a pressure sensor that continuously monitors atmospheric pressure and a controller configured for computing a compensated speed of sound using the monitored atmospheric pressure. The ultrasonic sensor sends an ultrasonic wave and determines the time lag in receiving the reflected ultrasonic wave from an object. Subsequently, the ultrasonic sensor generates a signal corresponding to the relative distance between the vehicle and the object using the compensated speed of sound and the time lag.
摘要:
A vehicle comprises a trailer angle detection apparatus and a trailer backup control system coupled to the trailer angle detection apparatus. The trailer angle detection apparatus is configured for outputting a signal generated as a function of an angle between the vehicle and a trailer towably attached to the vehicle. The trailer backup control system includes a jackknife enabling condition detector and a jackknife counter-measures controller. The jackknife counter-measures controller alters a setting of at least one vehicle operating parameter for alleviating an adverse jackknife condition during backing of the trailer by the vehicle when the jackknife enabling condition detector determines that a jackknife enabling condition has been attained at a particular point in time during backing of the trailer by the vehicle.
摘要:
A method and algorithm for determining a steering wheel angle of a vehicle steering mechanism upon power up of a vehicle using a single-turn steering wheel angle sensor by eliminating plausible steering wheel angles until one and only one steering wheel angle possibility remains.
摘要:
A vehicle has a trailer backup steering input apparatus, a trailer backup assist control module coupled to the a trailer backup steering input apparatus, and an electric power assist steering system coupled to the trailer backup assist control module and. The trailer backup steering input apparatus is configured for outputting a trailer path curvature signal approximating a desired curvature for a path of travel of a trailer towably coupled to the vehicle. The trailer backup assist control module is configured for determining vehicle steering information as a function of the trailer path curvature signa. The electric power assist steering system is configured for controlling steering of steered wheels of the vehicle as a function of the vehicle steering information.
摘要:
A trailer backup steering input apparatus is coupled to a vehicle. The trailer backup steering input apparatus comprises a rotatable control element (e.g., a knob) and a rotatable control element movement sensing device. The rotatable control element biased to an at-rest position between opposing rotational ranges of motion. The rotatable control element movement sensing device is coupled to the rotatable control element for sensing movement of the rotatable control element. The rotatable control element movement sensing device outputs a signal generated as a function of an amount of rotation of the rotatable control element with respect to the at-rest position, a rate movement of the rotatable control element, and/or a direction of movement of the rotatable control element with respect to the at-rest position.
摘要:
A steering wheel angle detection system having a steering wheel angle sensor, a generator and a controller memory such that when a vehicle ignition is powered off, movement of a steering wheel generates electricity and allows a steering wheel angle sensor to detect the change in steering wheel angle. The change, or an indicator, is stored in non-volatile RAM until a time in which the ignition is powered-on. The generator may be a generator dedicated to the steering wheel angle sensor or it may be an electric motor that is part of an electrically assisted power steering system.
摘要:
A vehicle comprises a trailer angle detection apparatus and a trailer backup control system coupled to the trailer angle detection apparatus. The trailer angle detection apparatus is configured for outputting a signal generated as a function of an angle between the vehicle and a trailer towably attached to the vehicle. The trailer backup control system includes a jackknife enabling condition detector and a jackknife counter-measures controller. The jackknife counter-measures controller alters a setting of at least one vehicle operating parameter for alleviating an adverse jackknife condition during backing of the trailer by the vehicle when the jackknife enabling condition detector determines that a jackknife enabling condition has been attained at a particular point in time during backing of the trailer by the vehicle.
摘要:
A vehicle has a global positioning system and an active parking assist system. The global positioning system is configured for providing information designating a present location of the vehicle and for providing information designating configuration of a target parking location proximate to the present location of the vehicle. The active parking assist system is configured to affect maneuvering of the vehicle into the target parking location. The active parking assist system is coupled to the global positioning system for acquiring the present location information therefrom and the target parking location information therefrom. The active parking assist system determines a type of assisted parking functionality to implement for affect maneuvering of the vehicle into the target parking location dependent upon the present location information and the target parking location information.
摘要:
A system and method for compensating ultrasonic sensors mounted on a vehicle for speed of sound variations. The ultrasonic sensor is operatively coupled to a power train control module having a pressure sensor that continuously monitors atmospheric pressure and a controller configured for computing a compensated speed of sound using the monitored atmospheric pressure. The ultrasonic sensor sends an ultrasonic wave and determines the time lag in receiving the reflected ultrasonic wave from an object. Subsequently, the ultrasonic sensor generates a signal corresponding to the relative distance between the vehicle and the object using the compensated speed of sound and the time lag.