摘要:
A method for estimating steering assistance provided by a power steering system of a vehicle may include correlating an internal torque applied by an adaptive steering system of the vehicle with an external torque applied to a steering assembly of the vehicle. The method may also include estimating the steering assistance based on the correlation.
摘要:
A present steering position of a manually actuatable steering unit of the motor vehicle is determined based on sensor data. A steering command is generated based on the present steering position of the steering unit. Then, based on sensor-detected present vehicle dynamics data, it is determined whether the motor vehicle is in a straight-ahead running situation during driving operation. It is determined whether, during the straight-ahead running situation of the motor vehicle, the present steering position of the steering unit deviates from a straight-ahead running position of the steering unit for at least one of a specified time period and a specified traveling distance of the motor vehicle. A compensation steering command is generated based on the determined deviation of the present steering position of the steering unit from the straight-ahead running position. A corrected steering command is generated based on combining the compensation steering command with the steering command.
摘要:
Methods and systems are described for providing feedback in the event of a lane deviation of a vehicle having a power steering system. Vehicle data, such as speed, a steering angle, and the like, may be acquired (e.g., from a sensor system of the vehicle). An activation signal may be generated based on the acquired data. A haptic warning may then be generated using the power steering system of the vehicle based on the activation signal.
摘要:
A steer-by-wire system for a land vehicle, having a steering wheel, a feedback actuator, a detection device equipped to detect a driver's intention to enter the vehicle and/or a driver's intention to exit the vehicle, and an electronic control system, which, following detection of the intention to enter the vehicle and/or the intention to exit the vehicle controls the feedback actuator to hold the steering wheel in a predetermined rotational position by generating a holding torque. When an actuating torque which exceeds the holding torque is applied manually to the steering wheel and the steering wheel is rotated out of the predetermined rotational position, the electronic control system continuously approximates a turning angle of the predetermined rotational position to a turning angle of a current rotational position of the steering wheel using a specified time-based adjustment function based on a difference between the actuating torque and the holding torque.
摘要:
A present steering position of a manually actuatable steering unit of the motor vehicle is determined based on sensor data. A steering command is generated based on the present steering position of the steering unit. Then, based on sensor-detected present vehicle dynamics data, it is determined whether the motor vehicle is in a straight-ahead running situation during driving operation. It is determined whether, during the straight-ahead running situation of the motor vehicle, the present steering position of the steering unit deviates from a straight-ahead running position of the steering unit for at least one of a specified time period and a specified traveling distance of the motor vehicle. A compensation steering command is generated based on the determined deviation of the present steering position of the steering unit from the straight-ahead running position. A corrected steering command is generated based on combining the compensation steering command with the steering command.
摘要:
Methods, apparatus, and articles of manufacture to identify non-uniformity in a vehicle steering system are disclosed. An example apparatus includes a first sensor to measure a steering wheel angle relative to a first universal joint, a second sensor to measure a pinion angle relative to a second universal joint, and a third sensor to measure a torque relative to a torsion bar. The apparatus further includes a non-uniformity manager to determine a non-uniformity angle associated with a steering column, the non-uniformity angle based on the torque and comparing the steering wheel angle to the pinion angle, map the non-uniformity angle to a first position of the steering column, and determine an offset to adjust a steering response based on the first position.
摘要:
Methods and apparatus for determining kinetic friction in electromechanical steering actuators are disclosed herein. In some examples, the apparatus comprises a steering controller. In some examples, the steering controller is to apply an input torque to a steering system via a motor. In some examples, the steering controller is to determine an angular acceleration of the steering system in response to the input torque. In some examples, the steering controller is to determine a response torque based on the angular acceleration. In some examples, the steering controller is to determine a friction torque of the steering system based on the input torque and the response torque.
摘要:
Methods, apparatus, and articles of manufacture to identify non-uniformity in a vehicle steering system are disclosed. An example apparatus includes a first sensor to measure a steering wheel angle relative to a first universal joint, a second sensor to measure a pinion angle relative to a second universal joint, and a third sensor to measure a torque relative to a torsion bar. The apparatus further includes a non-uniformity manager to determine a non-uniformity angle associated with a steering column, the non-uniformity angle based on the torque and comparing the steering wheel angle to the pinion angle, map the non-uniformity angle to a first position of the steering column, and determine an offset to adjust a steering response based on the first position.
摘要:
A computer is programmed to determine a trajectory of a first vehicle. The computer is programmed to determine whether a second vehicle blocks the trajectory. Upon such determination, the computer sends an instruction to the second vehicle to adjust the second vehicle speed. The computer is programmed to determine the instruction based on the determined trajectory of the first vehicle, a second vehicle location, and a second vehicle speed.
摘要:
Methods and apparatus for determining kinetic friction in electromechanical steering actuators are disclosed herein. In some examples, the apparatus comprises a steering controller. In some examples, the steering controller is to apply an input torque to a steering system via a motor. In some examples, the steering controller is to determine an angular acceleration of the steering system in response to the input torque. In some examples, the steering controller is to determine a response torque based on the angular acceleration. In some examples, the steering controller is to determine a friction torque of the steering system based on the input torque and the response torque.