A vehicle presence notification apparatus notifying a presence of a vehicle includes an alarm device and a dynamic speaker The alarm device includes an alarm generator generating an alarm sound and an acoustic tube through which the alarm sound is emitted outside of the vehicle The dynamic speaker generates a notification sound with audible frequency The dynamic speaker is fixed to the acoustic tube and emits the notification sound inside of the acoustic tube, such that the notification sound is generated outside of the vehicle through the acoustic tube

Vehicle presence notification apparatus

A vehicle notification sound emitting apparatus is basically provided with a sound emitting device and a notification sound control device. The sound emitting device emits forward and reverse advancement notification sounds outside of a vehicle to inform a person in an area surrounding the vehicle that the vehicle will move. The notification sound control device operates the sound emitting device to selectively emit the forward and reverse movement notifications. The notification sound control device includes forward and reverse advancement notification sound emission timing sections. A start timing of the forward advancement notification sound is set in response to both a forward movement shift operation having been performed and an additional start movement preparation operation of the vehicle having been performed. A start timing of the reverse movement notification sound is set to be emitted immediately in response to the reverse movement shift operation having been performed.

Vehicle notification sound emitting apparatus

A vehicle comprises electric motor, generator of simulated engine sounds, decider of whether or not to generate simulated engine sounds and controller of the level of simulated engine sounds. The controller smoothly increases level of simulated engine sounds upon decision of sound generation on detection of pedestrian, crosswalk, narrow road, or road with no sidewalk. The decider is responsive to vehicle navigation system, or ETC, or camera of EDR. EDR records the decision as circumstantial evidence. The decision may be optionally possible, but is forcibly made upon necessity. Simulated engine sounds can be greater than, or equal to, or less than real engine sounds. The controller makes a soft peak of simulated engine sound upon brake or accelerator operated. Balance of simulated engine sounds among front, rear, right and left of vehicle is changeable in response to shift lever or blinker lever operation. The decision is visually indicated inside vehicle.

Vehicle capable of low noise runs

An electronic control device comprises a circuit board having a heat generating part mounted thereon; a case for installing therein the circuit board, the case having a heat receiving portion that is in contact with the heat generating part; at least two first fixing units that are constructed and arranged to fix a peripheral portion of the circuit board to the case; and at least one second fixing unit that is arranged to fix a given area of the circuit board to the case while pressing the given area against the heat receiving portion through the heat generating part, the given area being an area where the heat generating part is placed.

Electronic control device

A method for directing a vehicle to operate in a noise generating mode based on a context is provided. A present location of the vehicle is determined using a location sensing device (204,300). Then, it is determined whether the present location of the vehicle is within one or more noise generating zones (104). In response to determining that the present location of the vehicle is within a noise generating zone (104), the vehicle is directed to operate in the noise generating mode.

Context-Based sound generation

An apparatus for notifying presence of a vehicle to a periphery of the vehicle includes a control unit that controls an operating unit that operates to cause the vehicle to drive, generating an operation sound; a judging unit that judges whether it is necessary to notify the presence of the vehicle to the periphery of the vehicle; and a notifying unit that notifies, when the judging unit judges that it is necessary to notify the presence of the vehicle to the periphery of the vehicle, the presence of the vehicle to the periphery of the vehicle using the operation sound, by changing a content of a control by the control unit.

Vehicle-presence notifying apparatus and vehicle-presence notifying method

An electronic control device according to an embodiment of the present invention includes an arithmetic device such as a microcomputer (10) having a watchdog timer circuit (111), and a runaway monitoring circuit (25) which monitors the arithmetic device for an operational failure by receiving a pulse output from the arithmetic device. 
The watchdog timer circuit (111) or the runaway monitoring circuit (25) detects occurrence of a failure of the arithmetic device according to the state (high level or low level) of an indication signal (wakeup signal) which shows the operational state of the arithmetic device.

PROBLEM TO BE SOLVED: To provide an own vehicle existence information device and an own vehicle existence information method that select alarm type of light or sound in response to a travel environment where one's own vehicle travels and can inform a pedestrian of an appropriate alarm. SOLUTION: The own vehicle existence information device 100 has a function of selecting an alarm by a headlight 340 by an alarm light information control part 320 by an own vehicle existence sound generator 300 in response to the travel environment of the own vehicle 600 determined by a travel environment determining device 800 or informing by a speaker 350 by an alarm sound information control part 330 (or both the headlight 340 and the speaker 350), and of appropriately informing the pedestrian of one of the alarm by the headlight 340 and the alarm by the speaker 350. COPYRIGHT: (C)2005,JPO&NCIPI

Own vehicle existence information device, and own vehicle existence information method

PROBLEM TO BE SOLVED: To provide an electronic control system for vehicles capable of suppressing a dark current amount within a specified value even when an ECU includes a plurality of CPUs. SOLUTION: An output signal control circuit 22 of a wake-up/sleep determination circuit 15 in a power supply IC 3 performs a wake-up sequence control when a wake-up permission is given by an OR circuit 21 during the sleep of the CPU so as to provide power supply voltage to a power manager CPU 1 and G/W-CPU2 as well as to make a reset signal an H level. On the other hand, when a sleep permission is given by an AND circuit 23 during the wake-up of the CPUs, the output signal control circuit 22 performs a sleep sequence control so as to interrupt the power supply to the power manager CPU 1 and the G/W-CPU 2 after making the reset signal an L level. COPYRIGHT: (C)2007,JPO&INPIT

Electronic control system

PROBLEM TO BE SOLVED: To provide a communication device for shortening time duration necessary for rewriting processing by reducing the number of data rewriting of a back-up memory. SOLUTION: A control unit 23 for acquiring storing data of a node from the node connected to CAN bus, inserting the storing data and flag information for requiring return of storage data in a predetermined region in the frame data, and transmitting it to another node on CAN bus is provided. The storage data in a memory is not stored in a memory and is transmitted or received with another node, so the number of storage to the memory can be reduced. COPYRIGHT: (C)2007,JPO&INPIT

Naoyuki Takaishi

Papers

Vehicle-presence notifying apparatus and vehicle-presence notifying method

Electronic control device

Own vehicle existence information device, and own vehicle existence information method

Electronic control system

Communication device, on-vehicle system, data storing method and program