Abstract: A vehicle steering control device includes a turning angle varying device serving as a first turn response change device for changing a gain of yaw rate of a vehicle with respect to steering operation, and a rear wheel steering device serving as a second turn response change device for changing a gain of lateral acceleration of the vehicle with respect to the steering operation. Under a state in which magnitude of curvature of a travel path is equal to or less than a first reference value, at least one of the turning angle varying and rear wheel steering devices is controlled so that a ratio of the gain of the lateral acceleration to the gain of the yaw rate increases when a width of the travel path is small compared with when the width of the travel path is large.

Abstract: Provided is a vehicle cruise control device 10 that performs trajectory control for causing a vehicle to travel along a traveling road by steering vehicle wheels. The vehicle cruise control device includes: a roll control device (active stabilizers 56 and 58, etc.) configured to control a lateral-direction inclination angle of a vehicle body; and an inclination angle estimation device (a roll rate sensor 72, a stroke sensor 74i, etc.) configured to determine a lateral-direction inclination of a traveling road. When the trajectory control is executed in a situation in which the vehicle travels on a laterally inclined traveling road (S150, S250, S300, S500), the lateral-direction inclination angle of the vehicle body is controlled by the roll control device so that the lateral-direction inclination angle of the vehicle body is greater than 0 and smaller than the lateral-direction inclination angle of the traveling road (S450).

Abstract: A control device (50) for an electric power steering device (10) is configured to: store a basic target return speed (Vrb), which increases in magnitude as the magnitude of a steering angle (?) increases; calculate, when a steering wheel (14) is being returned to a neutral position, the basic target return speed (Vrb) based on an actual steering angle (Step 10); calculate a transitional target return speed (Vtrt), which gradually increases in magnitude and gradually approaches the basic target return speed as the magnitude of the actual steering wheel decreases; and control, when the magnitude of a difference between the basic target return speed and the transitional target return speed is more than a reference value, a steering assist torque so that a return speed reaches the transitional target return speed (Step 20 to Step 160).

Abstract: A vehicle control device includes: an angle sensor configured to detect a rotation angle of a steering system of a vehicle; an actuator mounted on the vehicle; and a control device configured to perform a vehicle control by controlling the actuator based on the detection result of the angle sensor. At a time the angle sensor has failed, the control device is configured to limit the vehicle control at a time an estimation angle error obtained based on a failure time of the angle sensor and the rotation speed of the steering system is not smaller than a predetermined reference value and not to limit the vehicle control at a time the estimation angle error is smaller than the reference value.

Abstract: A vehicle cruise control device is provided that obtains a target trajectory of a vehicle based on white lines 102 and 104 as traveling route specification targets contained in information acquired by a device that acquires at least information in front of the vehicle, and performs traveling trajectory control so as to cause the vehicle to travel along the target trajectory. When the vehicle travels a particular area 110 where a traveling route branches into a plurality of traveling routes and a target trajectory cannot be obtained based on white lines, an interim target trajectory 116 is obtained for the particular area, based on the white lines 102 and 104 in an area adjacent to the particular area and a traveling route that the vehicle is to travel after traveling the particular area, and interim traveling trajectory control is executed so that the vehicle travels along the interim target trajectory.

Abstract: A steering system includes a steering angle detection unit that detects a steering angle of a steering wheel; a steering torque detection unit that detects a steering torque with respect to the steering wheel; an ECU that calculates a corrected steering angle by nonlinearly correcting the steering angle, a first steering parameter as the product of an angular velocity of the steering angle and the steering torque, a second steering parameter as the product of the corrected steering angle and a time differential value of the steering torque, and a target control amount based on the first steering parameter and the second steering parameter; and a steering support unit that applies a rotation torque to the steering wheel based on the target control amount.

Abstract: 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 o

Abstract: Provided is a steering control device (10) for a vehicle (12), including a front wheel steering device (14) and a rear wheel steering device (42). When a magnitude of a steering angle (MA) is large in a state in which rear wheels are steered by the rear wheel steering device in the same phase with respect to front wheels, the steering control device carries out calculation so as to increase a rear wheel target correction steering angle A6bt for a correction steering for the rear wheels (18RL and 18RR) toward an opposite phase direction with respect to the front wheels (18FL and 18FR) compared with when the magnitude of the steering angle is small, and controls the rear wheel steering device based on the target correction steering angle ??bt, thereby increasing a slip angle toward the inside of a turn of the vehicle.

Abstract: A vehicle control device includes: an angle sensor configured to detect a rotation angle of a steering system of a vehicle; an actuator mounted on the vehicle; and a control device configured to perform a vehicle control by controlling the actuator based on the detection result of the angle sensor. At a time the angle sensor has failed, the control device is configured to limit the vehicle control at a time an estimation angle error obtained based on a failure time of the angle sensor and the rotation speed of the steering system is not smaller than a predetermined reference value and not to limit the vehicle control at a time the estimation angle error is smaller than the reference value.

Abstract: A vehicle travel track control device which includes a forward image capture device which captures an image ahead of a vehicle, and side image capture devices which capture an image on the left side and/or the right side of the vehicle. When it is possible to properly execute a travel track control on the basis of captured forward image information ahead of the vehicle, the travel track control is executed on the basis of the captured forward image information sent from the forward image capture device, and when it is not possible to properly execute a travel track control on the basis of the captured forward image information, the travel track control is executed on the basis of at least captured side image information sent from the side image capture devices.

Abstract: Provided is a vehicle cruise control device 10 that performs trajectory control for causing a vehicle to travel along a traveling road by steering vehicle wheels. The vehicle cruise control device includes: a roll control device (active stabilizers 56 and 58, etc.) configured to control a lateral-direction inclination angle of a vehicle body; and an inclination angle estimation device (a roll rate sensor 72, a stroke sensor 74i, etc.) configured to determine a lateral-direction inclination of a traveling road. When the trajectory control is executed in a situation in which the vehicle travels on a laterally inclined traveling road (S150, S250, S300, S500), the lateral-direction inclination angle of the vehicle body is controlled by the roll control device so that the lateral-direction inclination angle of the vehicle body is greater than 0 and smaller than the lateral-direction inclination angle of the traveling road (S450).

Abstract: A steering intention determination device includes a calculation unit that calculates a value based on the product of a steering angular velocity and a steering torque and the product of a steering angle and the time differential value of the steering torque, and a determination unit that determines that the driver has a turn-and-steer steering intention in a case where the value is equal to or greater than a predetermined value, determine that the driver has a steering holding intention in a case where the value is less than the predetermined value and the absolute value of the steering angular velocity is less than a predetermined angular velocity, and determine that the driver has a switchback steering intention in a case where the value is less than the predetermined value and the absolute value of the steering angular velocity is equal to or greater than the predetermined angular velocity.

Abstract: A steering system includes a steering angle detection unit that detects a steering angle of a steering wheel; a steering torque detection unit that detects a steering torque with respect to the steering wheel; an ECU that calculates a corrected steering angle by nonlinearly correcting the steering angle, a first steering parameter as the product of an angular velocity of the steering angle and the steering torque, a second steering parameter as the product of the corrected steering angle and a time differential value of the steering torque, and a target control amount based on the first steering parameter and the second steering parameter; and a steering support unit that applies a rotation torque to the steering wheel based on the target control amount.

Abstract: A vehicle steering control apparatus in a vehicle including an apparatus changing a tire steer angle independently of steering wheel operation; a detecting device detecting a tire steer angle equivalent value corresponding to the tire steer angle; and a controller is provided. The controller is configured to learn a steering wheel angle neutral point; determine if the detecting device is in an abnormal state; disregard the learned steering wheel angle neutral point if the detecting device is in the abnormal state; control the apparatus such that the tire steer angle is returned to a tire steer angle neutral point if the detecting device is in the abnormal state; initialize the detecting device after the tire steer angle is returned to the tire steer angle neutral point; and restart the learning of the steering wheel angle after the detecting device is initialized.

Abstract: A vehicle cruise control device is provided that obtains a target trajectory of a vehicle based on white lines 102 and 104 as traveling route specification targets contained in information acquired by a device that acquires at least information in front of the vehicle, and performs traveling trajectory control so as to cause the vehicle to travel along the target trajectory. When the vehicle travels a particular area 110 where a traveling route branches into a plurality of traveling routes and a target trajectory cannot be obtained based on white lines, an interim target trajectory 116 is obtained for the particular area, based on the white lines 102 and 104 in an area adjacent to the particular area and a traveling route that the vehicle is to travel after traveling the particular area, and interim traveling trajectory control is executed so that the vehicle travels along the interim target trajectory.

Abstract: A vehicle motion control apparatus which is configured to control a motion of a vehicle comprising a plurality of apparatuses, each of which is configured to selectively control a slip angle or a yaw rate, is provided with: a behavior controlling device which is configured to perform behavior control in which a plurality of apparatuses are controlled such that a slip angle and a yaw rate are a set target slip angle and a target yaw rate, respectively; a turning state quantity specifying device which is configured to specify a turning state quantity of the vehicle; and a selecting device which is configured to select at least one of the slip angle and the yaw rate to be prioritized, on the basis of the specified turning state quantity in a case where the behavior control needs to be performed by one of the plurality of apparatuses.

Abstract: An ECU executes steering control in a vehicle including an electronic control power steering apparatus. In the steering control, it is determined that an assist motor is in a power generating state when a motor rotation speed ? which is the rotation speed of the assist motor is greater than an upper limit rotation speed ?1 set according to a motor command voltage Vq that is the driving voltage of the assist motor. When the assist motor is in the power generating state, the ECU interrupts the supply of current to the assist motor by controlling a relay portion of a drive apparatus that drives the assist motor so that it is open, thereby reducing the amount of power that is generated to zero. Also, when returning to an assist possible state, assist torque Tm is changed gradually with zero as the initial value in order to prevent it from changing suddenly.

Abstract: A characteristic point extraction section acquires an image captured by an image capture device and extracts characteristic points from the captured image, a vehicle lane boundary point selection section selects vehicle lane boundary points that indicate vehicle lanes from the extracted characteristic points, a distribution determination section determines the distribution of the vehicle lane boundary points, a system noise setting section sets each system noise based on the distribution of vehicle lane boundary points, and a travel path parameter estimation section stably predicts travel path parameters based on the vehicle lane boundary points, past estimation results, and the system noise that has been set.

Abstract: A device for controlling a steering transmission ratio variable device, which is provided with: a motor, which is able to apply a driving force that promotes relative rotation between a steering output shaft coupled to wheels to be turned and a steering input shaft that applies a steering input to the steering output shaft to one of either the steering output shaft or the steering input shaft; a motor driving device that drives the motor; and a locking device that is able to restrict the relative rotation, has a setting device that prescribes a drive voltage the motor and sets a damping gain, which acts in a direction that reduces a rotating speed of the motor, to a value that is larger than a reference value corresponding to an unlocked state during a locking control period in which a state of the steering transmission ratio variable device switches from an unlocked state in which the relative rotation is not restricted to a locked state in which the relative rotation is restricted.

Abstract: A vehicle travel track control device which includes a forward image capture device which captures an image ahead of a vehicle, and side image capture devices which capture an image on the left side and/or the right side of the vehicle. When it is possible to properly execute a travel track control on the basis of captured forward image information ahead of the vehicle, the travel track control is executed on the basis of the captured forward image information sent from the forward image capture device, and when it is not possible to properly execute a travel track control on the basis of the captured forward image information, the travel track control is executed on the basis of at least captured side image information sent from the side image capture devices.