Mazda Motor Corporation

Futoshi Shoji

Masaki Kakihara

Masao Sasaki

Yasuyuki Masaki

Hiroshi Ohmura

Osamu Michihira

Isao Hirashima

Tatsuaki Taniguchi

Nagahisa Fujita

Masatoshi Takayama

Akihiro Fujiwara

Kiyoshi Mutsura

Hiromasa Nakamoto

Yoshinori Otsubo

Keiji Takao

Tsutomu Hasegawa

Yukinobu Natsuaki

Toshihiko Okamoto

When some failure has been detected as a result of self diagnosis in first and second sound playback units ( ), a nonvolatile memory ( ) in a control unit ( ) stores device, product, and error codes, and a predetermined pattern for informing that failure is displayed on a panel display device ( ). The stored codes can be displayed on the panel display device ( ) in response to predetermined first operation, and when input operation for operating the disabled unit is made at a control panel ( ), the CPU re-displays the predetermined pattern for informing the failure on the display device with reference to the stored codes.

Sound apparatus for vehicle

An opening portion (2) is formed on an instrumental panel (1). A plurality of units (U1-U3) and a panel body (P) corresponding to the units are arranged. The units (U1-U3) have neither an input portion such as switches operated by the passenger nor an output portion such as a display for the passenger, and switch groups (7, 8) and a display (5) are mounted on the panel body (P). The units (U1-U3) and panel body (P) are coupled and connected to each other in advance to obtain an electronic equipment assembly. Of this assembly, the units (U1-U3) are stored in the instrumental panel (1) via the opening portion (2), and the opening portion (2) is covered by the panel body (P), so that the panel body (P) constitutes a portion of the wall surface in the passenger room.

Electronic equipment apparatus and electronic equipment assembly

A navigation apparatus for vehicles according to the present invention has a display device for displaying road information. The navigation system is designed to selectively display the road information which is close to the current position of the vehicle and/or the demands of the driver from a large amount of road information (each of which consists of image data to be displayed and logical data on which logical determination can be made).

Navigation apparatus for vehicles

A navigation apparatus for vehicles has a display device for displaying map information. On the screen of the display device, a current position of the vehicle on which this navigation apparatus is mounted is displayed. Also, a route to a preset destination starting from the current position is displayed at the maximum length.

An automotive navigation system has a receiver for receiving data signals on present position of the vehicle transmitted from satellites. A present position detecting system detects the present position of the vehicle on the basis of the data signals. A display device shows the present position of the vehicle on the basis of the output of the present position detecting system. Change of the output of the present position detecting system to be given to the display device is inhibited when the vehicle is at a stop.

Automotive navigation system

An improved parking brake system for a vehicle capable of switching the operation of the parking brake between an automatic control mode and a manual control mode at the operator's will. The parking brake is applied and released by an electromagnetic device which is controlled by a brake-application command signal and a brake-release command signal produced by a controller. The controller is adapted to be manually switched between a manual brake-application and brake-release control mode and an automatic control mode under the action of a switch. A power supply circuit is provided which has a battery and an ignition power source for supplying power to the electromagnetic device. The power supply circuit is operatively connected with the switch in a manner such that power is supplied to the electromagnetic device from the battery when the switch is manually operated to switch the controller into the manual brake-application control mode, and from the ignition power source when the switch is manually operated to switch the controller into the manual brake-release control mode. With this arrangement, even if the switch is thrown into a position for releasing the parking brake during stoppage of the vehicle on a slope with the parking brake applied, the parking brake is not released but held applied so that accidental starting of the vehicle is positively prevented, whereby safety is improved.

Electric parking brake system for a vehicle

Growing community of inventors

Hiroshima, Japan

Futoshi Shoji