Abstract: There are provided a vehicle control device and a control method thereof capable of improving safety and reliability with a simple configuration. A vehicle control device 1 that controls a vehicle includes an execution management unit P3 that manages execution of predetermined processing, an execution state recording unit P5 that records a history of execution states of the predetermined processing, and a setting information management unit P4 that manages setting information related to the execution of the predetermined processing. The setting information includes a jitter tolerance which is a tolerance of a jitter. The execution management unit P3 adjusts an execution timing of processing to be adjusted, which is included in the predetermined processing and in which the jitter is generated, based on the jitter tolerance of the processing to be adjusted.

Abstract: There are provided a vehicle control device and a control method thereof capable of improving safety and reliability with a simple configuration. A vehicle control device 1 that controls a vehicle includes an execution management unit P3 that manages execution of predetermined processing, an execution state recording unit P5 that records a history of execution states of the predetermined processing, and a setting information management unit P4 that manages setting information related to the execution of the predetermined processing. The setting information includes a jitter tolerance which is a tolerance of a jitter. The execution management unit P3 adjusts an execution timing of processing to be adjusted, which is included in the predetermined processing and in which the jitter is generated, based on the jitter tolerance of the processing to be adjusted.

Abstract: Provided is a vehicle control device capable of reducing a control gap that occurs when a system is restored to a normal state after a malfunction is corrected, thereby achieving smooth driving performance for a user. A vehicle control device according to the present invention has a first travel control mode and a second travel control mode. When in a transitional state from the second travel control mode to the first travel control mode, the vehicle control device calculates and checks a first control parameter used in the first travel control mode, calculates a second control parameter used in the second travel control mode, and uses the second control parameter for traveling control.

Abstract: Provided is an in-vehicle control device that allows the giving and receiving of data via inter-core communication at the timing of a user, as well as being capable of minimizing processing load while satisfying safety requirements of different functional safety levels in the inter-core communication of a multicore microcomputer. The data communication between a plurality of cores is performed by a writing means for writing the data of a core register into a region of a shared memory of the cores, where safety levels are set, using a hardware function. The cores have different functional safety levels.

Abstract: Provided is an in-vehicle control device that allows the giving and receiving of data via inter-core communication at the timing of a user, as well as being capable of minimizing processing load while satisfying safety requirements of different functional safety levels in the inter-core communication of a multicore microcomputer. The data communication between a plurality of cores is performed by a writing means for writing the data of a core register into a region of a shared memory of the cores, where safety levels are set, using a hardware function. The cores have different functional safety levels.

Abstract: Provided is a vehicle control device capable of reducing a control gap that occurs when a system is restored to a normal state after a malfunction is corrected, thereby achieving smooth driving performance for a user. A vehicle control device according to the present invention has a first travel control mode and a second travel control mode. When in a transitional state from the second travel control mode to the first travel control mode, the vehicle control device calculates and checks a first control parameter used in the first travel control mode, calculates a second control parameter used in the second travel control mode, and uses the second control parameter for traveling control.

Abstract: A diagnostic device capable of accurately diagnosing the soundness of a resolver circuit is provided. A shifter receives excitation signal and excitation signal; shifts the level of excitation signal, excitation signal, or both; and performs level shifting such that a period of time that starts with one of two times in which, in the vicinity of the peak value of excitation signal, excitation signal and excitation signal are at the same value and ends with the other of the two times is less than a prescribed threshold. A trigger generation circuit generates a trigger during said period of time. A control unit determines whether there is an abnormality in the resolver circuit on the basis of the trigger.

Abstract: A diagnostic device capable of accurately diagnosing the soundness of a resolver circuit is provided. A shifter receives excitation signal and excitation signal; shifts the level of excitation signal, excitation signal, or both; and performs level shifting such that a period of time that starts with one of two times in which, in the vicinity of the peak value of excitation signal, excitation signal and excitation signal are at the same value and ends with the other of the two times is less than a prescribed threshold. A trigger generation circuit generates a trigger during said period of time. A control unit determines whether there is an abnormality in the resolver circuit on the basis of the trigger.

Abstract: To diagnose whether a diagnostic function inside an RD converter is normally operated with a simple configuration even if abnormality occurs in the RD converter itself. A diagnostic device of an RD converter diagnostic unit according to the present invention generates and inputs a resolver output that is in an error state to an RD converter, and determines that the diagnostic unit is normally operated if a diagnosis result of the RD converter indicates an abnormal state.

Abstract: The present invention is directed to a method of estimating a motor rotation angle that does not affect precision of a detected angle of a crank angle sensor, which is an alternative sensor, when abnormality occurs in a resolver and a peripheral circuit, and performing a motor control without failure of an inverter or peripheral device. A vehicle system includes a motor, a resolver detecting a rotor rotation angle of the motor, a motor control circuit controlling the motor based on information on rotor rotation angle and torque command value, an engine connected to the motor through a crankshaft, and a crankshaft sensor detecting revolutions of the crankshaft, in which the motor control circuit estimates rotor rotation angle based on a variation rate of the number of revolutions of the crankshaft when abnormality of the resolver is detected, and performs a weak field control based on estimated rotor rotation angle.

Abstract: The present invention is directed to a method of estimating a motor rotation angle that does not affect precision of a detected angle of a crank angle sensor, which is an alternative sensor, when abnormality occurs in a resolver and a peripheral circuit, and performing a motor control without failure of an inverter or peripheral device. A vehicle system includes a motor, a resolver detecting a rotor rotation angle of the motor, a motor control circuit controlling the motor based on information on rotor rotation angle and torque command value, an engine connected to the motor through a crankshaft, and a crankshaft sensor detecting revolutions of the crankshaft, in which the motor control circuit estimates rotor rotation angle based on a variation rate of the number of revolutions of the crankshaft when abnormality of the resolver is detected, and performs a weak field control based on estimated rotor rotation angle.

Abstract: The invention is intended to provide a control device for a vehicular AC motor, which has higher efficiency of voltage utilization in a power running mode and has higher efficiency of electricity generation in an electricity generation mode. The motor control device comprises rectifying devices and switching devices for three phases, which are connected between a DC power source and armature coils of an AC motor operatively coupled to an internal combustion engine. The motor control device has the inverter function of converting a DC power from the DC power source into an AC power and supplying the AC power to the armature coils, and the converter function of converting an AC power generated by the AC motor into a DC power and supplying the DC power to the DC power source.