Abstract:
A control section of a steering controller calculates a steer angle which is a turning angle of a first column shaft based on a first detection value detected by a steer angle sensor, and calculates a second shaft turning angle which is a turning angle of a second column shaft based on a second detection value detected by a second shaft rotation angle sensor. A steering torque detection value is calculated based on a third detection value detected by a torque sensor. An abnormality determination part determines abnormalities of the steering torque detection value based on the steer angle and the second shaft turning angle. Thereby, abnormalities of the steering torque detection value are detected without multiplexing the steering torque detection value. Further, if the steering torque detection value is multiplexed, an abnormal steering torque detection value can be specifically identified.
Abstract:
An information processing apparatus installed in a vehicle includes a driving control section and a preparation control section. The driving control section executes automated driving of the vehicle. The preparation control section executes, when the automated driving is being executed by the driving control section, preparation control which is control that stops at least a part of the automated driving and makes the driver perform a preparation switching to driving by the driver of the vehicle.
Abstract:
The likelihood of a collision of a vehicle colliding with an object in front of an own vehicle is determined, and an emergency braking control for avoiding a collision with the object is started in accordance with the determination results. A determination is made as to whether travel environment conditions have been established, from the location at which the vehicle is currently travelling, the situation behind the vehicle, and, the travel state of the vehicle, and the braking control is released when the likelihood of a collision dropped to a predetermined safety level during the period from the start of the emergency braking control until the own vehicle stops, and when the travel environment conditions have been established.
Abstract:
A motor controller has an assist controller generating an assist instruction for a generation of an assist torque based on a detection value of a steering torque, a follow controller obtaining a target value of a physical quantity regarding a steering operation and generating a follow instruction, and a motor driver driving, according to a sum of the assist instruction and the follow instruction, a motor that generates the assist torque and an automatic steering toque. In addition, the follow controller changes, according to a degree of intervention by a driver that is detected by an intervention detector, responsiveness of the follow control, making it possible to naturally hand over a motor control to the driver or to a system when the driver or the system intervenes a current control of the motor that generates the assist torque and/or the steering torque.
Abstract:
A rotating electric machine driver apparatus and an electric power steering apparatus using the same includes a controller section that obtains a detected current value and generates a high-side instruction signal and a low-side instruction signal to switch an upper arm element and a lower arm element based on the detected current value. An abnormality detector determines a simul-OFF abnormality which is an abnormality of a pair made up of the high-side and low-side instruction signals being simultaneously switched off based on a condition that switching off of the high-side instruction signal for the upper arm element and the low-side instruction signal for the lower arm element pair continues for at least a simul-OFF abnormality determination time. In such manner, the simul-OFF abnormality of the instruction signals is detected.
Abstract:
An apparatus for estimating a transfer function of at target object having divided systems is disclosed. The apparatus acquires an estimation equation to estimate the transfer function of the target object, and determines, for each arithmetic operation in the estimation equation, whether the arithmetic operation is an addition or a multiplication. For the multiplication, the apparatus performs the multiplication of frequency response characteristics in the frequency domain. For addition, the apparatus converts the frequency response characteristics into time response characteristics, performs the addition of the time response characteristics in the time domain, and reconverts a result of the addition into the frequency domain.
Abstract:
In a vehicular power supply system, a main battery supplies electric power to both main machine drive circuit, which drives a main motor for driving a vehicle, and a steering assist drive circuit, which drives a steering assist motor of a power steering apparatus. A main machine switching circuit, which is capable of shutting off power supply to the main machine drive circuit, and an auxiliary machine switching circuit, which is capable of shutting off power supply to the steering assist drive circuit are provided in parallel. As long as the auxiliary machine switching circuit is turned on, power supply to the steering assist drive circuit is continued even when the main machine switching circuit is turned off.