Abstract: A control apparatus of a steering system for vehicles that controls a turning mechanism by using steering information communicated electrically, includes a turning angle control section that calculates a motor current command value to make a turning angle detected in the turning mechanism follow a target turning angle, and has a friction compensating section that calculates a compensation motor current command value for compensating a follow-up delay of the turning angle caused by a friction in the turning mechanism by performing filter processing to velocity information. The turning angle control section performs compensation by the compensation motor current command value in calculation of the motor current command value, and the control apparatus controls the turning mechanism based on the motor current command value.

Abstract: [Problem] An object of the present invention is to provide a steering apparatus for vehicles that easily obtains equivalent steering torques to a steering angle or the like without being affected by a road surface state and aging-changes of mechanism characteristics of a steering system. [Means for solving the problem] A steering apparatus for vehicles that assists and controls a steering system comprises a torsional angle control section that calculates a motor current command value to make the torsional angle follow a target torsional angle; the torsional angle control section comprises a steering angle disturbance compensating section that calculates a first compensation motor current command value by performing filter processing to the detected steering angle, and the torsional angle control section performs compensation by the first compensation motor current command value in calculation of the motor current command value.

Abstract: A steering apparatus for vehicles that easily obtains equivalent steering torques to vehicle driving information such as a steering angle without being affected by a road surface state and aging-changes of mechanism characteristics of a steering system. The steering apparatus includes a torsional angle control section that calculates a motor current command value based on a target torsional angle corresponding to vehicle driving information and the torsional angle, and includes a torsional angle feedback compensating section that calculates a target torsional angular velocity by a deviation between the target torsional angle and the torsional angle. A torsional angular velocity calculating section calculates a torsional angular velocity by the torsional angle, and a velocity control section calculates a pre-limitation motor current command value by performing proportional compensation based on the target torsional angular velocity and the torsional angular velocity.

Abstract: A vehicle steering apparatus that obtains the appropriate steering torque to the steering angle without being affected by road surface state and changes of mechanical characteristics of the steering system due to aging. The steering apparatus includes a target steering torque generating section to generate a target steering torque, a converting section to convert the target steering torque into a target torsional angle, and a torsional angle control section to calculate a motor current command value so as to follow-up a torsional angle to the target torsional angle. The target steering torque generating section includes an offset correcting section to obtain the first torque signal from a characteristic depending on the set steering angle based on an offset value of the steering torque and outputs the first torque signal as a target steering torque. The steering apparatus drives and controls the motor based on the motor current command value.

Abstract: A vehicle steering apparatus that obtains the appropriate steering torque to the steering angle without being affected by road surface state and changes of mechanical characteristics of the steering system due to aging. The steering apparatus includes a target steering torque generating section to generate a target steering torque, a converting section to convert the target steering torque into a target torsional angle, and a torsional angle control section to calculate a motor current command value so as to follow-up a torsional angle to the target torsional angle. The target steering torque generating section includes an offset correcting section to obtain the first torque signal from a characteristic depending on the set steering angle based on an offset value of the steering torque and outputs the first torque signal as a target steering torque. The steering apparatus drives and controls the motor based on the motor current command value.

Abstract: A steering apparatus for vehicles that easily obtains equivalent steering torques to vehicle driving information such as a steering angle without being affected by a road surface state and aging-changes of mechanism characteristics of a steering system. The steering apparatus includes a torsional angle control section that calculates a motor current command value based on a target torsional angle corresponding to vehicle driving information and the torsional angle, and includes a torsional angle feedback compensating section that calculates a target torsional angular velocity by a deviation between the target torsional angle and the torsional angle. A torsional angular velocity calculating section calculates a torsional angular velocity by the torsional angle, and a velocity control section calculates a pre-limitation motor current command value by performing proportional compensation based on the target torsional angular velocity and the torsional angular velocity.

Abstract: [Problem] An object of the present invention is to provide an electric power steering apparatus that enables suppression of a high-frequency vibration and enhancement of followability of a motor angular velocity to a motor velocity command by using a velocity control section (for example, PI-control, PID-control) and adding a motor current compensation value to a motor current command value on the basis of a steering state signal, even when a gain of the velocity control section is made large.

Abstract: There is provided a control device for an electric power steering device, which determines an estimate of a steering angle instead of using an angle sensor when any abnormality is detected in the angle sensor to perform steering angle control using the determined estimate of the steering angle. When it is determined that the detected steering angle is normal based on a steering angle abnormality determination signal Flg_?h, a steering angle calculating section 201 outputs a steering-wheel angle ?h as an actual steering angle ?r, while when it is determined that the detected steering angle is abnormal, the steering angle calculating section 201 determines and outputs an estimate ?r of an actual steering angle using a past value Z?r of the actual steering angle under normal conditions, a motor relative angle ??m, and a relative twist angle ?? of a torsion bar.

Abstract: An electric power steering apparatus that easily obtains desired steering torques to a steering angle without being affected by a road surface state and changes of mechanism characteristics of a steering system due to aging. The apparatus includes a target steering torque generating section to generate a target steering torque based on at least one of EPS/vehicle information, a converting section to convert the target steering torque into a target torsional angle, and a torsional angle control section to calculate the current command value based on the target torsional angle, a steering angle, a torsional angle of a torsion bar and a motor angular velocity.

Abstract: An electric power steering apparatus including a steering angle control section that calculates a steering angle control current command value. The steering angle control section includes a position control section that calculates a basic steering angular velocity command value, a steering intervention compensating section that obtains a compensatory steering angular velocity command value, and a steering angular velocity control section that calculates the steering angle control current command value from the basic steering angular velocity command value, the compensatory steering angular velocity command value and an actual steering angular velocity.

Abstract: An electric power steering apparatus includes a steering angle control section that calculates a steering angle control current command value and the current command value using at least the steering angle control current command value. This control section has a position control section to calculate a basic steering angular velocity command value, a steering intervention compensating section to obtain a compensatory steering angular velocity command value, and a steering angular velocity control section to calculate a steering angle control current command value with the basic steering angular velocity command value, the compensatory steering angular velocity command value and an actual steering angular velocity.

Abstract: To provide a drive information recording device capable of recording drive information including steering torque, a steering angle, and flag information capable of recognizing whether or not automatic driving control is performed, as drive information related to steering, and an electric power steering device including the same. A drive information recording device includes a storage device, a camera, an impact detection sensor, a display device, and a drive information recording control unit, and the drive information recording control unit records, in the storage device, drive information in which information including inputted steering torque, vehicle speed, input shaft rotational angle, output shaft rotational angle, motor rotational angle, first current command value and second current command value, steering angle, steering angle command value, and a mode flag is associated with inputted captured image data.

Abstract: An electric power steering apparatus that easily obtains desired steering torques to a steering angle without being affected by a road surface state and changes of mechanism characteristics of a steering system due to aging. The apparatus includes a target steering torque generating section to generate a target steering torque based on at least one of EPS/vehicle information, a converting section to convert the target steering torque into a target torsional angle, and a torsional angle control section to calculate the current command value based on the target torsional angle, a steering angle, a torsional angle of a torsion bar and a motor angular velocity.

Abstract: [Problem] An object of the present invention is to provide an electric power steering apparatus that achieves manual steering even if steering intervention is performed by a driver during automatic steering, ensures more safety when the driver steers urgently, and enables both assist control and steering angle control.

Abstract: [Problem] An object of the present invention is to provide an electric power steering apparatus that easily obtains equivalent steering torques to vehicle driving information such as a steering angle without being affected by a road surface state and aging-changes of mechanism characteristics of a steering system.

Abstract: [Problem] An object of the present invention is to provide an electric power steering apparatus that achieves a manual steering even if a steering intervention is performed by a driver during an automatic steering, ensures more safety when a driver steers urgently, and enables both an assist control and a steering angle control.

Abstract: An electric power steering apparatus that easily obtains equivalent steering torques to vehicle information such as a steering angle without being affected by a road surface state and aging-changes of mechanism characteristics of a steering system. The apparatus includes a torsion bar provided in a column shaft of a steering wheel of a vehicle, and assist-controls a steering system by driving and controlling a motor connected to the column shaft based on a current command value. A target steering torque generating section generates a target steering torque based on vehicle driving information, a converting section converts the target steering torque into a target torsional angle, and a torsional angle control section calculates the current command value so that a torsional angle of the torsion bar follows the target torsional angle; and performs a control so that a detection torque of the torsion bar follows a value depending on driving information.

Abstract: An electric power steering apparatus that: calculates a steering angle control current command value for the steering angle control based on at least a steering angle command value and an actual steering angle; judges a steering state based on a manual input judgment and performs a switch of the steering state; converts a steering angular velocity command value calculated from at least the steering angle command value and the actual steering angle into an extended steering angular velocity command value; calculates the steering angle control current command value based on the extended steering angular velocity command value and an actual steering angular velocity; performs manual input judgment to a steering torque by using a threshold; and calculates the current command value by using at least the steering angle control current command value.

Abstract: An electric power steering apparatus includes a control substrate that controls a poly-phase motor having a multi-system motor winding, including a temperature sensor that detects a substrate temperature of said control substrate; and a coil temperature estimating section that obtains coil calorific values of respective phases of said poly-phase motor and a substrate calorific value of said control substrate by a motor current of said phase, and estimates a coil temperature of said phase by said coil calorific value, said substrate calorific value and said substrate temperature based on a heat transfer phenomenon between said respective phases that is caused by a difference in temperature between coils of said respective phases and a heat transfer phenomenon between said coil and said control substrate.

Abstract: An electric power steering apparatus that reduces uncomfortable feeling to a driver in steering angle control by improving followability of an actual steering angle to a target steering angle, and performs efficient damping to a vibration of a vehicle. The apparatus includes a torque control section that calculates a first motor current command value based on a steering torque and so on, a target steering angle generating section that generates a target steering angle based on vehicle information, and a steering angle control section that calculates a second motor current command value based on the target steering angle, an actual steering angle and so on, and calculates the motor current command value by the first and second motor current command values.