Mitsubishi Electric Corporation

Mitsubishi Denki Kabushiki Kaisha

Katsuyuki Sumimoto

Junya Sasaki

Keiichi Komurasaki

Masahiro Nakajima

Noriyuki Wada

Akio Kamimurai

Keisuke Katsurada

Kazunori Tanaka

Kyoko Higashino

Motoi Hisamoto

Jyunya Sasaki

Shinji Nishimura

Tatsuki Kouwa

Masashi Mori

Kensuke Kitamura

Yasuaki Okamoto

An information processing device acquires related information related to support information for supporting safe driving of a vehicle transmitted from the vehicle to one or more apparatuses among a roadside unit, another vehicle, and a mobile terminal device, and calculates a score of an owner of the vehicle based on the related information.

Information processing device

A control device for a vehicle generator includes a shared terminal to be connected to a communication IF or a lamp IF via a switch; and a nonvolatile PROM which controls the switch based on shared terminal setting data and carries out switching between the IFs to be connected to the shared terminal. The PROM stores therein shared terminal setting data 'communication IF effective' as its initial setting. The shared terminal setting data stored in the PROM can, when necessary, be rewritten into 'lamp IF effective' via the shared terminal, the communication IF, and a memory controller.

Vehicle generator control device

A P terminal that is connected to an armature coil, an LIN terminal for LIN communications, and an interface circuit are provided, and the interface circuit converts serial signals which are input from the P terminal and the LIN terminal into parallel signals and transmits scan test signals input from the P terminal and the LIN terminal to a digital circuit and transmits a scan test signal output from the digital circuit to the LIN terminal.

Electric power generation control device of alternating current generator for vehicles

Among serial communication systems between vehicle-mounted communication units, a serial communication system for improving use efficiency of a communication bandwidth in a communication standard LIN has been required. In order to solve this problem, in a serial communication system of LIN, a response of a master node as a write request transmitted from the master node to a slave node and a response of the slave node transmitted from the slave node to the master node are combined into a time base, and a certain period for receiving a response from the slave node is provided after the write request from the master node.

Serial communication system

There is provided a vehicle-power-generator control apparatus and the control method thereof that does not notify a passenger of any erroneous alarm indicating an abnormality in an electric power generator, even when a power-generation stop command is received. it is determined that a vehicle power generator is not rotating, when the rotation speed, of the vehicle power generator, that is detected based on a power-generation voltage generated across an armature winding of the vehicle power generator is the same as or lower than a predetermined value; there is generated a power-generation stop holding signal obtained by delaying by a predetermined time a time point at which a power-generation stop signal, generated when the decoded command signal is a power-generation stop command signal for stopping electric-power generation, stops; then, the non-rotation determination signal is masked and invalidated, based on the power-generation stop holding signal.

Vehicle-power-generator control apparatus and control method thereof

A master generator is configured to use a duty upper limit value and a duty lower limit value to perform duty restriction processing on a PWM signal in continuous Y cycles out of generated X cycles, and transmit the PWM signal after the restriction processing to a slave generator. The slave generator is configured to receive the PWM signal after the restriction processing transmitted from the master generator as a received PWM signal, and determine that a reception abnormality exists when the received PWM signal is received as a signal representing a duty less than the duty lower limit value or a duty more than the duty upper limit value in continuous (X&#x2212;Y+1) cycles.

Power generator system, power generator control device, and power-generation balance control method for power generator system

The invention enables durability in a higher temperature environment to be ensured without changing mechanical design specifications. A power generation control device for controlling generator output to a predetermined range by intermittently controlling a field current of a vehicle alternating current generator, includes a limit deactivation signal reception unit that receives a limit deactivation signal of the field current from an exterior, a rotation speed detection unit that detects generator rotation speed, a temperature detection unit that detects temperature of the power generation control device, and a limit activation/deactivation determination unit that, when the limit deactivation signal is input, deactivates the field current limit under predetermined rotation speed and temperature conditions.

Power generation control device of vehicle alternating current generator

A one-time memory control apparatus is obtained that prevents erroneous opening of a fuse from causing logic conversion and enhances the reliability. The one-time memory control apparatus includes an opening current creation fuse C opening switch and an opening current creation fuse D opening switch that each allow a fuse opening current from a fuse opening current creation circuit to flow in response to an opening enable signal, and a fuse opening permission signal creation circuit that receives respective logic signals corresponding to the states of fuse opening currents that flow through an opening current creation fuse C and an opening current creation fuse D, and that creates a fuse opening permission signal.

One-time memory control apparatus

A control apparatus of an AC generator for a vehicle can obtain large regeneration energy without making the size of the generator large. In the control apparatus in which an AC output current is rectified and supplied to a vehicle mounted battery () and an electric load of the vehicle, provision is made for a regulator () that controls a continuity rate of electric power supply to a field coil () of a generator () by controlling an output voltage of the generator (). The regulator () suppresses the continuity rate of electric power supply to the field coil () at the time of steady operation of the vehicle, and switches a suppression value of the continuity rate of electric power supply so as to increase the continuity rate of electric power supply at the time of deceleration operation of the vehicle.

Control apparatus of an AC generator for a vehicle

A vehicle AC generator control apparatus, the rotor of an vehicle AC generatorof which is coupled through a torque transfer member with the output axle of an internal combustion engine mounted in a vehicle, is provided with a magnetic-field current control system that can control the value c of a magnetic-field current flowing in a magnetic-field windingof the vehicle AC generatorso that the magnetic-field current value c coincides with a magnetic-field current command value b; it is made possible to make the rotation torque of the vehicle AC generatordepend only on the rotation speed and to stabilize control of the internal combustion engine.

Vehicle AC generator control apparatus

A current detector of an inductive load includes: an inductive load; a switching elementconnected in series with the inductive load and controls an electric current to be carried through this inductive load by ON/OFF operation; a current circulating diodeconnected in parallel with the inductive load and circulates an electric current of the inductive load when the switching element is OFF; current detecting devicemaking a sampling in a cycle of a predetermined sampling period to detect an electric current to be carried through the switching element; and current correction devicemaking a correction with respect to an electric current value having been detected at the current detector, and in which the current correction devicechanges the correction rate based on DUTY of a pulse with which the switching element is brought in ON/OFF operation.

Current detector of inductive load

The control device including: a power transistor () for controlling conduction/non-conduction of a field coil () in accordance with an output voltage of an AC generator () mounted on a vehicle; an RPM detection section () for detecting an RPM of the AC generator (); a drive duty setting section () for determining whether or not the RPM detected by the RPM detection section () is equal to or higher than a predetermined threshold, and reducing a conduction ratio of the field coil () when determining that the RPM is equal to or higher than the predetermined threshold; and a driver () for driving the power transistor () based on the conduction ratio. In this manner, the conduction ratio of the field coil () is reduced to suppress the drive torque.

Control device and control method for a vehicle AC generator

In a control device for a vehicle AC generator, a voltage control includes target voltage adjusting means for adjusting a target voltage value in response to a target change command from an external control unit and a gradual excitation control circuit that controls an excitation duty to increase according to an excitation duty control characteristic when a vehicle load increases and when the target voltage adjusting means varies the target voltage value to a lower value. The gradual excitation control circuit includes duty characteristic varying means for varying the excitation duty control characteristic. The duty characteristic varying means varies a rate of increase of the excitation duty in a predetermined region of the excitation duty control characteristic in comparison with its other region.

Control device for vehicle AC generator

A control device for a vehicle AC generator, in which a part can be shared even when electrical configuration positions of field coils of rotors of generators are different, is obtained. Switching elements connected in series to the field coil in order to control a field current; and a control signal processing unit, in which information as to whether the field coil is connected to the high potential side or connected to the low potential side is inputted, one of the high potential side terminal and the low potential side terminal is selected on the basis of the inputted information, a control signal is outputted, and ON/OFF control of the switching element is performed to control the field current of the field coil, are provided.

There can be performed the best power-generation control without enlarging the apparatus, deteriorating the reliability, and raising the cost. The power-generation control apparatus is provided with a power-generation amount suppression determination unit that determines whether or not to change a power-generation amount suppression level for suppressing the power-generation amount of the in-vehicle electric rotating machine, based on a present generation-voltage command value generated by a generated-voltage command unit and a generated-voltage past command value based on a past generated-voltage command value stored in a generated-voltage command storage unit, and that determines whether or not the power-generation amount suppression control is required, based on at least one of a past value and a present value of the generated-voltage command; therefore, there can be performed the best power-generation control without enlarging the apparatus, deteriorating the reliability, and raising the cost.

Growing community of inventors

Tokyo, Japan

Katsuyuki Sumimoto