Abstract: A steering device includes a turning shaft, a turning motor, and a control device that controls the turning motor such that an angle capable of being converted into a turning angle of a turning wheel follows a target angle that is calculated depending on a steering state of a steering wheel. The control device executes a correction process of correcting the target angle. The control device corrects the target angle such that the degree of an increase in the target angle is slower as the target angle approaches a limit value of an angle region, when the target angle increases toward the limit value of the angle region in either of a vehicle stop state or an extremely low speed state.

Abstract: A periphery monitoring apparatus is applied for a vehicle provided with a ranging sensor that transmits probe waves and receives reflection waves of the probe waves, setting a precaution region in a laterally rear side of an own vehicle and causing a collision avoidance operation to be executed when the ranging sensor detects an object in the precaution region. The periphery monitoring apparatus is provided with an acquiring unit that acquires lane information indicating presence or absence of a lane marking on a traffic lane; a recognition unit that recognizes a position of the lane marking based on the lane information; and a precaution region setting unit that sets the precaution region based on the position of the lane marking recognized by the recognition unit.

Abstract: A vehicle control system controls a steer-by-wire type vehicle. The vehicle control system executes: reaction force control that applies a steering reaction force to a steering wheel; and driving assist control that assists driving of the vehicle. The reaction force control includes road information transmission control that applies a steering reaction force component corresponding to an oscillation caused by road surface unevenness to the steering wheel. The vehicle control system deactivates the road information transmission control when a deactivation condition is satisfied. The deactivation condition is that the driving assist control is in operation and a steering parameter reflecting a driver's steering intention is less than a threshold. As another example, the deactivation condition is that the driving assist control that vibrates the steering wheel for notifying the driver of a possibility of a lane departure is in operation.

Abstract: A steering control device is configured to control a steering device as a controlled object, the steering device having a structure in which transmission of power between a steering portion and a turning portion is cut off. The steering control device includes a central processing unit. The central processing unit is configured to execute a reduction process in a case where at least either one of a travel state amount and a steering state amount is a state amount indicating that a target turning-corresponding angle does not change. The reduction process is a process of reducing a driving current to be supplied to a turning motor.

Abstract: A reaction force actuator applies, during normal operation, a steering reaction force, which rapidly increases upon approaching an upper limit of a virtual steering range, to a steering wheel. During rapid steering in which a turning angle velocity is greater than or equal to a predetermined value and a turning follow delay is greater than or equal to a predetermined value, the reaction force actuator applies a steering reaction force to the steering wheel based on an upper limit corresponding to a narrower virtual steering range.

Abstract: A turning control device includes a first processor, a second processor, a third processor, and a fourth processor. The first processor calculates a torque command value based on a difference between a target pinion angle and a pinion angle. The second processor calculates a compensation value compensating resistance of a turning mechanism based on a difference between a target pinion angular velocity and a pinion angular velocity. The third processor limits a variation range of the torque command value based on a limit value of the torque command value and limits a variation range of the compensation value based on a limit value of the compensation value. The fourth processor calculates a turning torque command value by subtracting the compensation value from the torque command value. The third processor changes the limit values based on a traveling state of a vehicle.

Abstract: A steering control device calculates a target angle of a shaft that rotates in conjunction with a turning operation of a turning wheel that is isolated from dynamic power transmission with a steering wheel, depending on a steering state of the steering wheel, and executes a feedback control to cause an actual angle to follow the target angle, for controlling electricity supply to a turning motor to turn the turning wheel, the steering control device including: a first processing unit to execute a process to alter the target angle independently of the steering state of the steering wheel; and a second processing unit to calculate a turning state amount for a guide monitor function to assist traveling of a vehicle, by reducing or removing an influence of an alteration of the target angle on the actual angle of the shaft.

Abstract: A thermal acid generator having a high acid generation temperature, and a resist composition using the same.

Abstract: A steer-by-wire steering system includes a controller configured to execute a steering control process and a determining process of determining a converted operation amount by converting an actual wheel steering amount to an operation amount of an operation member based on an inverse of a steering gear ratio. In the determining process, when the steering gear ratio abruptly changes, the controller converts a gap of the converted operation amount generated at a time point of occurrence of the abrupt change to a gap of the wheel steering amount to grasp a converted steering amount offset value. While gradually decreasing the converted steering amount offset value, the controller thereafter re-converts the converted steering amount offset value to the gap of the converted operation amount based on the inverse of the steering gear ratio to determine a converted operation amount correction value and corrects the converted operation amount based on the value.

Abstract: A vehicle control system for a steer-by-wire vehicle executes: driving assist control that assists driving of the vehicle; and conjunction reaction force control that applies a steering reaction force component to a steering wheel in conjunction with vehicle turning caused by the driving assist control. A driver turn angle is a target turn angle corresponding to a steering angle of the steering wheel, and a first system turn angle is a target turn angle required by the driving assist control. In the conjunction reaction force control, a second system turn angle is acquired by adjusting the first system turn angle according to a driver's steering intention such that the difference between the system turn angle and the driver turn angle becomes smaller. Then, a steering reaction force component is applied in a direction of reducing a difference between the driver turn angle and the second system turn angle.

Abstract: A vehicle control system controls a steer-by-wire type vehicle. The vehicle control system executes: reaction force control that applies a steering reaction force to a steering wheel; and driving assist control that assists driving of the vehicle. The reaction force control includes road information transmission control that applies a steering reaction force component corresponding to an oscillation caused by road surface unevenness to the steering wheel. The vehicle control system deactivates the road information transmission control when a deactivation condition is satisfied. The deactivation condition is that the driving assist control is in operation and a steering parameter reflecting a driver's steering intention is less than a threshold. As another example, the deactivation condition is that the driving assist control that vibrates the steering wheel for notifying the driver of a possibility of a lane departure is in operation.

Abstract: A thermal acid generator having a high acid generation temperature, and a resist composition using the same.

Abstract: A compound represented by formula (A) exhibits excellent balance between acid generation sensitivity and capability of providing a composition with reduced discoloration. In formula (A), R1, R11, R12, R13, R14, R15, R16, R17, and n are as defined in the description. R1 is preferably an optionally substituted aliphatic hydrocarbon group having 1 to 20 carbon atoms or an optionally substituted aromatic hydrocarbon group having 6 to 20 carbon atoms.

Abstract: Provided are: a thermal acid generator having a high acid generation temperature; and a resist composition using the same.

Abstract: A steering device includes a turning shaft, a turning motor, and a control device that controls the turning motor such that an angle capable of being converted into a turning angle of a turning wheel follows a target angle that is calculated depending on a steering state of a steering wheel. The control device executes a correction process of correcting the target angle. The control device corrects the target angle such that the degree of an increase in the target angle is slower as the target angle approaches a limit value of an angle region, when the target angle increases toward the limit value of the angle region in either of a vehicle stop state or an extremely low speed state.

Abstract: A steering device includes: a turning shaft that turns a turning wheel of a vehicle, with dynamic power transmission being separated between the turning shaft and a steering wheel; a turning motor; and a control device. The control device executes a particular process for increasing a command value to a value larger than an original command value that depends on a steering state, in a particular situation where an axial force exceeding a design-based expectation is easily generated in the turning shaft.

Abstract: A steering control device is configured to control a steering device as a controlled object, the steering device having a structure in which transmission of power between a steering portion and a turning portion is cut off. The steering control device includes a central processing unit. The central processing unit is configured to execute a reduction process in a case where at least either one of a travel state amount and a steering state amount is a state amount indicating that a target turning-corresponding angle does not change. The reduction process is a process of reducing a driving current to be supplied to a turning motor.

Abstract: Provided are: a thermal acid generator having a high acid generation temperature; and a resist composition using the same.

Abstract: Provided are: a negative photosensitive composition which exhibits excellent sensitivity at the time of being cured and yields a cured article having excellent heat resistance; a cured article thereof; and a method of curing the same.

Abstract: Provided are: a positive photosensitive composition that exhibits excellent sensitivity at a time of being cured; a pattern using the same; and a method of producing a pattern.