Abstract: To realize control of a system for which a high level of safety is demanded by one SRAM-type FPGA, it is to eliminate a possibility that an undesirable control signal is output to the outside of the FPGA because of influence of failure by a soft error and the like and a problem. To solve this problem, there is provided a hard macro having fixed circuitry structure, programmable logic arranged via an interval close to the hard macro and having a changeable circuitry structure, and an I/F circuit which is provided inside the programmable logic and outputs a processing result in the programmable logic to the hard macro. It is a characteristic that the I/F circuit monitors soundness of the programmable logic and stops output of the processing result to be transmitted to the hard macro on the basis of a monitoring result.

Abstract: An electromagnetic valve control unit for detecting operation of an electromagnetic valve on the basis of a drive voltage or a drive current applied to the electromagnetic valve. The electromagnetic valve control unit includes an A/D converter, a filter, and a detection unit. The A/D converter converts the drive voltage or the drive current into a digital signal. The filter has a gain of about zero at a predetermined frequency. The detection unit detects operation of the electromagnetic valve on the basis of an output of the filter upon input of the digital signal into the filter.

Abstract: To carry out diagnosis of a current sensor while maintaining high reliability. An inverter control device according to the present invention controls an inverter circuit, calculates an estimated direct current value on the basis of a duty value and an alternating current sensor value output by an alternating current sensor, and performs diagnosis of a direct current sensor on the basis of the estimated direct current value and a direct current sensor value output by the direct current sensor.

Abstract: Provided is a method of detecting and preventing soft errors without performing multiplexing. As a result, it is possible to improve reliability of a device while suppressing an increase in mounting cost and reduction in operation speed accompanied with it. A diagnosis system includes an initial parameter generation unit which generates a plurality of initial parameters predicted on the basis of an external input; an operation unit which has a plurality of operators operating optimal solutions to the initial parameters by using an evaluation function describing a control object; and a diagnosis unit which diagnoses the operation unit on the basis of an output of the operation unit. When an optimal solution candidate giving an evaluation value deviating from a value taken by each evaluation value by a constant threshold or more among evaluation values corresponding to the optimal solutions to the initial parameters is found, the diagnosis unit diagnoses an error of the operation unit.

Abstract: An object of the present invention is to diagnose an abnormality detecting circuit that detects an abnormality, such as an overcurrent of a power semiconductor, with the number of insulating elements to be additionally provided, inhibited from increasing. There are provided: a drive circuit configured to output a gate signal to a power semiconductor; an abnormality detecting circuit configured to detect an abnormality of the power semiconductor; and a diagnosis signal applying circuit configured to apply a diagnosis signal to the abnormality detecting circuit. The diagnosis signal applying circuit applies the diagnosis signal, on the basis of the gate signal output by the drive circuit.

Abstract: In a system for performing clock generation for each semiconductor device, synchronization between the semiconductor devices is achieved without causing a count value in a counter to be discontinuously changed.

Abstract: Provided are an electromagnetic valve control unit and a fuel injection control device using the same that can precisely detect a change of an operating state of an electromagnetic valve, that is, a valve opening time or a valve closing time of the electromagnetic valve, precisely correct a drive voltage or a drive current applied to the electromagnetic valve, and appropriately control opening/closing of the electromagnetic valve, with a simple configuration. In an electromagnetic valve control unit for controlling opening/closing of an electromagnetic valve by a drive voltage and a drive current to be applied, the drive voltage and the drive current applied to the electromagnetic valve are corrected on the basis of a detection time of an inflection point from time series data of the drive voltage and the drive current when the electromagnetic valve is opened/closed.

Abstract: A power line communication apparatus includes a drive block including an actuator control circuit and a drive circuit and a communication block. The actuator control circuit generates a control pulse for controlling an actuator, and controls a transition timing of the control pulse during an operation period set within a communication cycle by a communication clock. The drive circuit controls a driving current of the actuator supplied from a DC power source through a power line based on the control pulse in which the transition timing is controlled. The communication block generates the communication clock, and modulates a current flowing through the power line in response to data to be transmitted during a signal transmission period different from the operation period, set within the communication cycle.

Abstract: To realize control of a system for which a high level of safety is demanded by one SRAM-type FPGA, it is to eliminate a possibility that an undesirable control signal is output to the outside of the FPGA because of influence of failure by a soft error and the like and a problem. To solve this problem, there is provided a hard macro having fixed circuitry structure, programmable logic arranged via an interval close to the hard macro and having a changeable circuitry structure, and an I/F circuit which is provided inside the programmable logic and outputs a processing result in the programmable logic to the hard macro. It is a characteristic that the I/F circuit monitors soundness of the programmable logic and stops output of the processing result to be transmitted to the hard macro on the basis of a monitoring result.

Abstract: Provided is a travel command generation device that generates, on the basis of an existence probability distribution for a plurality of obstacles, travel commands to avoid collision between the plurality of obstacles and a host vehicle, wherein the speed of collision probability computation is enhanced. On the basis of the existence probability distribution for the plurality of obstacles, a collision probability table is generated, for which a movement distance L on a fixed trajectory and a time T are input and the probabilities of collision between the plurality of obstacles and the host vehicle are output; and on the basis of the collision probability table, travel commands are generated for avoiding collision between the plurality of obstacles and the host vehicle.

Abstract: The present invention achieves, using simple circuits, timing synchronization among ECUs of an electronic control device which is configured from a driver ECU, a sensor ECU, and an integrated ECU which are connected over a network. This electronic control device is provided with a driver ECU for driving various loads for vehicular control, a sensor ECU for sampling various sensor signals, and an integrated ECU which is connected to the driver ECU and sensor ECU over a network and calculates command values to the various loads in accordance with various sensor data, the electronic control device being characterized in that the driver ECU has timer D for generating internal timing, the sensor ECU has timer S for generating internal timing, and the integrated ECU has timer M serving as a reference for timer D and timer S.

Abstract: A drive device capable of detecting individual variations of an injection quantity of a fuel injection device of each cylinder and adjusting a current waveform provided to an injection pulse width and a solenoid such that the individual variations of the fuel injection devices are reduced. The fuel injection device in the present invention includes a valve body that close a fuel passage by coming into contact with a valve seat and opens the fuel passage by separating from the valve seat and a magnetic circuit constructed of a solenoid, a fixed core, a nozzle holder a housing and a needle and when a current is supplied to the solenoid a magnetic suction force acts on the needle and the needle has a function to open the valve body by colliding against the valve body after performing a free running operation and changes of acceleration of the needle due to collision of the needle against the valve body are detected by a current flowing through the solenoid.

Abstract: In a system for performing clock generation for each semiconductor device, synchronization between the semiconductor devices is achieved without causing a count value in a counter to be discontinuously changed.

Abstract: Provided is a travel command generation device that generates, on the basis of an existence probability distribution for a plurality of obstacles, travel commands to avoid collision between the plurality of obstacles and a host vehicle, wherein the speed of collision probability computation is enhanced. On the basis of the existence probability distribution for the plurality of obstacles, a collision probability table is generated, for which a movement distance L on a fixed trajectory and a time T are input and the probabilities of collision between the plurality of obstacles and the host vehicle are output; and on the basis of the collision probability table, travel commands are generated for avoiding collision between the plurality of obstacles and the host vehicle.

Abstract: A drive device capable of detecting individual variations of an injection quantity of a fuel injection device of each cylinder and adjusting a current waveform provided to an injection pulse width and a solenoid such that the individual variations of the fuel injection devices are reduced. The fuel injection device in the present invention includes a valve body that closes a fuel passage by coming into contact with a valve seat and opens the fuel passage by separating from the valve seat and a magnetic circuit constructed of a solenoid, a fixed core, a nozzle holder, a housing, and a needle and when a current is supplied to the solenoid, a magnetic suction force acts on the needle and the needle has a function to open the valve body by colliding against the valve body after performing a free running operation and changes of acceleration of the needle due to collision of the needle against the valve body are detected by a current flowing through the solenoid.

Abstract: The present invention achieves, using simple circuits, timing synchronization among ECUs of an electronic control device which is configured from a driver ECU, a sensor ECU, and an integrated ECU which are connected over a network. This electronic control device is provided with a driver ECU for driving various loads for vehicular control, a sensor ECU for sampling various sensor signals, and an integrated ECU which is connected to the driver ECU and sensor ECU over a network and calculates command values to the various loads in accordance with various sensor data, the electronic control device being characterized in that the driver ECU has timer D for generating internal timing, the sensor ECU has timer S for generating internal timing, and the integrated ECU has timer M serving as a reference for timer D and timer S.

Abstract: An object of the present invention is to provide a high reliable/high safe programmable logic device with high error resistance. The present invention provides a programmable logic device that has a plurality of configuration memories. The configuration memories are divided into a plurality of areas and are arranged and a part of the plurality of areas is set to a high reliable area where reliability of the configuration memory is higher than in the other area.

Abstract: The purpose of the present invention is to provide an electronic control device including an integratable protection circuit that is capable of protecting an internal circuit, a sensor, etc., against both of surge voltage application and battery connection abnormality. The electronic control device includes an input terminal connectable to an external sensor and switch, and a power supply wiring and a GND wiring that are utilized to supply power to the internal circuit, wherein protection elements each including a PN junction are connected between the input terminal and the power supply wiring or the GND wiring, and protection resistor are further connected in series between the protection elements and the power supply wiring or the GND wiring.

Abstract: An object of this disclosure is to provide a fuel injection device that can reliably detect an operation timing of a valve body, that is, a valve opening timing with high accuracy. The current of an electromagnetic valve reaches I2 at time t3, an FET 201 and an FET 221 are turned on, and a battery voltage VB is applied to the electromagnetic valve until time t5 is reached. The amount of displacement of the valve body reaches a target amount of control lift at time t4 between time t3 and time t5, that is, a movable core 304 comes into contact with a fixed core 301. The detection of the valve opening timing is performed during the period from time t3 to time t5.

Abstract: The objective of the present invention is to increase reliability in an electronic control device when speculative execution is performed, by reducing the risk of erroneous control by the electronic control device, said erroneous control being due to speculative execution failures (such as failures to predict a future state or failure to complete a control calculation due to the execution of an advanced control calculation) which are generated when speculative execution is performed using limited hardware resources in an electronic control device having a control period restriction. Therefore, this electronic control device, which performs a calculation in accordance with one or more external inputs, and outputs a calculation result by a prescribed time, has one or more first calculation units that perform a calculation using a current input, and one or more second calculation units that perform a calculation using a prior input that been input at a point in time prior to the current input.