摘要:
A travel control device for a vehicle provided with: a steering angle control device that alters the relationship between the amount of steering operation of a driver and the steering angle of steerable wheels; a trajectory control device that controls the travel trajectory of the vehicle by means of controlling the steering angle of the steerable wheels; and a turning condition control device that determines a target turning condition control level for causing the turning condition of the vehicle to be a target turning condition, and controls the turning condition of the vehicle on the basis of the target turning condition control level. A turning condition control device calculates the target turning condition control level on the basis of the amount of steering operation of the driver and the control level of the trajectory control device, and thereby reflects in the target turning condition control level changes to the steering angle resulting from the control of the traveling trajectory.
摘要:
A travel control device for a vehicle provided with: a steering angle control device that alters the relationship between the amount of steering operation of a driver and the steering angle of steerable wheels; a trajectory control device that controls the travel trajectory of the vehicle by means of controlling the steering angle of the steerable wheels; and a turning condition control device that determines a target turning condition control level for causing the turning condition of the vehicle to be a target turning condition, and controls the turning condition of the vehicle on the basis of the target turning condition control level. A turning condition control device calculates the target turning condition control level on the basis of the amount of steering operation of the driver and the control level of the trajectory control device, and thereby reflects in the target turning condition control level changes to the steering angle resulting from the control of the traveling trajectory.
摘要:
A vehicle control apparatus that controls a vehicle provided with a steering force applying device capable of applying steering force to induce a change in a steering angle of a steered wheel to the steered wheel, includes a difference detecting device that detects a positional difference that determines a relative positional relationship between a target running path to be maintained and the vehicle; a determining device that determines a control amount of the steering force applying device based on the detected positional difference; a controller that maintains a running path of the vehicle on the target running path by controlling the steering force applying device according to the determined control amount; a steering input detecting device that detects a steering input to a steering input device by a driver; and a correcting device that corrects a determining reference of the control amount of the steering force applying device such that, when a steering input is detected while the running path is maintained on the target running path, this steering input is reflected.
摘要:
A vehicle steering control system that controls the operation of an electric vehicle steering device, which applies a steering assist force to a steering mechanism via a gear mechanism and includes: a temperature estimating section for estimating the temperature of or around the gear mechanism; and a correcting section for correcting the steering assist force according to the estimated gear temperature.
摘要:
In the control of an electric power steering apparatus, where so-called lead steering control is performed in which a steering wheel angle signal is output through a lead filter to correct reaction delay of a driver and a vehicle, a delay in control response occurs due to feedback of a road surface reaction force torque. When road surface reaction force torque is fed back to the steering wheel, it is added through a low-pass filter having a time constant equal to a reaction delay time constant of a driver. A sum signal is output through a lead filter to a second motor for controlling a steering shaft.
摘要:
An electric power steering apparatus having a steering system capable of flexibly setting a relationship between a steering angle of a steering wheel and a wheel angle of a tire. The first motor controls steering reaction force exerted on the steering wheel. The on-center region determination section determines whether the steering wheel is in a position of an on-center region. The tire reaction force torque detection section detects tire reaction force torque transferred from the tire. The control section calculates a steering torque based on the tire reaction force torque and a torque gain. This torque is detected by the tire reaction force torque detection section. And the control section controls the first motor to exert the steering reaction force corresponding to the above calculated steering torque on the steering wheel. This control section also sets the torque gain in case of determining of on-center region larger than that in case of determining of non-on-center region.
摘要:
A vehicle steering control apparatus (100) in a vehicle (10), which is provided with: a steering system including at least a rudder angle varying device (400, 700) capable of changing a relation between a steering angle, which is a rotation angle of a steering wheel (12), and a rudder angle of steered wheels and a steering torque assisting device (500) capable of assisting a driver steering torque; and a power supply source (800) for supplying electric power to the steering system, is provided with: a limiting device for limiting electric current consumption of the steering torque assisting device if a consumption current value of the steering system is greater than a maximum allowable current value in a case where supply capacity of supplying an electric current in the power supply source is reduced with respect to a reference; and a controlling device for matching a neutral position of the steering wheel with a neutral position of the steered wheels in a situation in which the electric current consumption of the steering torque assisting device is limited.
摘要:
In control of a vehicle that is provided with a steering torque supply device that supplies a steering torque to a steering device coupled to a steered wheel and a steering transmission ratio variation device that changes a steering transmission ratio, the control includes: setting a target state quantity for keeping the vehicle in a target lane; controlling the steering transmission ratio variation device so that a state quantity of the vehicle becomes the set target state quantity; controlling the steering torque supply device so that a steering reaction restriction torque that restricts a steering reaction torque generated in the steering device is supplied with the steering device as the steering torque when the vehicle is kept within the target lane; and correcting the steering reaction restriction torque on the basis of a steering input when the steering input from a driver of the vehicle is produced.
摘要:
A steering control apparatus (100) controls a steering mechanism to limit a behavior of a vehicle in the vehicle (10) equipped with the steering mechanism (200) which can independently steer front wheels and rear wheels. The steering control apparatus is provided with: a controlling device for controlling the steering mechanism such that a rudder angle of the front wheels and a rudder angle of the rear wheels are reverse-phased and such that a rudder angle speed of the front wheels is higher than a rudder angle speed of the rear wheels.
摘要:
A power steering apparatus has a steering power assisting system coupled to tire wheels and a variable gear transfer system coupled to a steering wheel. The steering power assisting system includes a torsion bar rotation sensor and a first actuator rotation sensor to calculate a first pinion angle and a second pinion angle based on the detected rotation angles, respectively. The variable gear transfer system includes a steering sensor and a second actuator rotation sensor to calculate a third pinion angle based on the detected rotation angles. Sensor failure is detected by comparing the calculated first, second and third pinion angles.