Nissan Motor Company Limited

Chisso Corporation

Teruo Kawasaki

Hiroyuki Nomura

Kiyoshi Yamaki

Masanori Mizote

Kouichi Kogawa

Mikio Takeuchi

Hideoki Matsuoka

Takashi Oka

Masakazu Tsunoda

Kazuyuki Mori

Hidetaka Suzuki

Hitoshi Takeda

Takaaki Mogi

Hiroshi Yano

Masahiro Tamamushi

Kinya Mori

Akitoshi Mimura

Hiroyoshi Asakuno

Kenji Iwai

Mamoru Nishida

Kiyoaki Suzuki

Polypropylene interior parts for autocars having overcome the drawback of their permanent bulge or secondary deformation due to high temperature exposure is provided, which parts are obtained by molding a material comprising a propylene-ethylene block copolymer prepared by polymerizing propylene at a first stage so that the resulting propylene homopolymer can have a relation between its isotactic pentad ratio (P) and MFR of

Polypropylene interior parts for autocars

A voice warning device has a record disc as a recording medium storing warning and a repeat mechanism for repeatedly reproducing the warnings. The record disc contains a plurality of warning messages respectively corresponding to preselected abnormal conditions of vehicle devices. The repeat mechanism includes a means for detecting the most recently reproduced warning.

Voice warning device with repeat mechanism for an automotive vehicle

A device is disclosed for intermittent connection of a wiper drive motor to a power source. The device comprises first means for providing a control signal with its magnitude increased with increasing vehicle running speed, and second means for providing a first signal for a predetermined period of time and a second signal for a period of time variable according to the magnitude of the control signal. Means is provided for connecting the wiper drive motor to the power source in response to the first signal and for disconnecting the wiper drive motor from the power source in response to the second signal.

Wiper intermittent motion control device

A navigation instrument comprises a first counter for counting travelling distance from a start point, a second counter for counting travelling time from starting, a means for setting a scheduled average vehicle speed, an arithmetic means for calculating average vehicle speed, the deviation of travelling distance from the scheduled distance and the deviation of travelling time from the scheduled time, and a display means for displaying the result of calculation. The first counter is capable of subtractively counting travelling distance in response to switching operation of a switching means which is incorporated to the first counter. The first counter is also incorporated with a means for stopping navigating operation which is operative when the first counter counts down the travelling distance until a given value.

Navigation instrument

A windshield wiper system for an automotive vehicle such that intermittent wiper operation is controllable according to the distance travelled and the time elapsed, and is not merely dependent upon the speed of the vehicle. The windshield wiper system of the present invention thus improved comprises a distance signal generator, a time signal generator, a counter, and a wiper driving means, so that a more adequate intermittent wiper operation can be obtained in such a bad weather as drizzle or light rain, especially when the vehicle is travelling at a low speed or has stopped.

Windshield wiper system for an automotive vehicle

A device senses changes in a frequency or speed to be displayed. A display control circuit controls the time interval for updating the display, according to the magnitude of a sensed change in the frequency or speed, thereby avoiding flickering of the display, as well as improving the accuracy and up-to-dateness of the frequency or speed displayed.

Frequency and speed display device

The digital display device of a vehicle is provided with a control facility for controlling other vehicle mounted electric equipment such as a warning device, an auto-door lock mechanism, or the like. The control is effected by using a control signal intended for turning on a particular segment of an indicating portion of the digital display indicator.

Digital display device of vehicle use

A navigation instrument for use with a roadway vehicle comprises an arithmetic means producing three data signals showing the average speed of the vehicle, the deviation of the travelling distance from a scheduled one, and the deviation of the travelling time from a scheduled one, and a display means for displaying the three data sequentially fed from the arithmetic means through a signal selector means. The arithmetic means includes travelling distance/time deviation accumulating means for adding the deviation of the travelling distance/time with respect to the average speed initially set to the deviations of the travelling distance/time whenever the average speed is altered. Thus, the navigation instrument of the present invention makes it possible to calculate and display the travelling distance/time deviation accumulated value when the average speed of the vehicle is altered on the way of vehicle travelling.

A multifunction electronic meter for a vehicle can display selectively plural measured informations of fuel amount, cooling water temperature, oil pressure, battery voltage and the like of a vehicle on a single display section, the displayed informations being accompanied respectively with combinations of symbolmarks and surrounding frames thereof for identifying and warning those informations. The principal information of, for instance, fuel amount is ordinarily displayed, while the remaining informations are displayed selectively as occasion demands, for instance, in response to the occurrence of an emergency. When plural emergencies are simultaneously caused, the information corresponding to the lastly caused emergency is displayed intermittently together with the symbolmark, while only the symbolmarks and the frames of the informations corresponding to the previously caused emergencies are displayed continuously. Consequently, the most requisite measured information can be ordinarily noticed by a driver, as well as the remaining informations which are noticeable as occasion demands, regardless of the desired simplicity of configuration of an instrument panel of the vehicle.

Multifunction electronic meter for vehicle

A digital display type tachometer for an automobile for numerically displaying a rotation speed of the engine comprises a numeric character display device having display sections for 1000's, 100's, 10's and 1's digits, the 1's digit display section being constructed to display always '0', a counter for counting pulses generated in synchronism with the rotations of the engine to produce a BCD signal depending on the rotation speed, and decoding/driver means for decoding the BCD signal into decimal numeric character signals for 1000's, 100's and 10's digits and driving the 1000's, 100's, and 10's digit display sections by these character signals, respectively. The digital display type tachometer further comprises means for detecting whether the rotation speed of the engine is higher than 1000 rpm and producing a detection signal when the rotation speed is higher than 1000 rpm and means for controlling in response to said detection signal the 10's digit display section to display '0', whereby when the rotation speed of the engine is higher than 1000 rpm the rotation speed of the engine is displayed only with 1000's and 100's digits, while when the rotation speed of the engine is lower than 1000 rpm, the rotation speed is displayed with 100's and 10's digits.

Digital display type tachometer for an automobile

During starter motor operation, an electronic meter is not supplied with electric power so that the meter does not operate whereby fluctuating and flickering indications of the electronic meter are prevented. When other meters are illuminated, the electronic meter is also illuminated, thereby avoiding the incongruity that the electronic meter is dark whereas other meters are illuminated.

Control circuit for electronic meter in an automotive vehicle

A control device for an FM car radio in which low frequency characteristics of the audio output signal are switched so that stereophonic music programs can be reproduced with enough bass sound and monaural speech or news programs can be reproduced without much bass sound but with desirable articulation. One embodiment of the device comprises a capacitor-resistor filter connected in series between the amplifier and the speaker for attenuating low frequency characteristics of an audio output signal only when monaural broadcasting is being received, a transistor for shorting the filter to send bass sound directly to the speaker only when stereophonic broadcasting is being received, and a pilot signal discriminator which outputs pilot signals to turn on the transistor only when stereophonic broadcasting is being received.

Control device for an automotive vehicle FM radio

A voice warning system for an automotive vehicle automatically adjusts the voice volume to an appropriate sound level in accordance with the noise level within the passenger compartment. The improved system incorporates a noise level sensor and an electronic volume control in a voice warning system which includes a plurality of information switches and a multiplexer for providing control signals for an LPC-type voice synthesizer cooperating with a voice memory under control of a microcomputer to provide appropriate warning announcements.

Noise level controlled voice warning system for an automotive vehicle

A voice warning system for an automotive vehicle wherein a repeat switch is provided so that voice warning information is indicated to the driver repeatedly whenever the repeat switch is depressed. Accordingly, even if the driver fails to notice the information, it is possible to hear the information again. The system thus improved comprises a repeat switch, a memory, and a gate circuit, in addition to a voice warning system for an automotive vehicle.

Voice warning system for an automotive vehicle

An electronic trip meter with an alarm for an automotive vehicle comprises a travelled distance sensing circuit, a memory circuit, a modification circuit, comparators, an alarm, first and second counters, a subtractor, a display circuit, and other auxiliary circuits. A plurality of sub distances defined by guide points along a course and a total distance of the course are respectively preset in the memory circuit and the second counter. The second counter output signal indicates a distance remaining to the goal of the course for displaying the remaining distance. The modification circuit output signal indicates a distance shorter than a sub distance while the first counter output signal indicates a distance actually travelled. When the vehicle travells over the distance shorter than the sub distance, the alarm is energized, by means of a comparison of the distances for informing the driver that a next guide point is near. Simultaneously, a distance remaining to the next guide point is displayed for a predetermined period of time.

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Yokohama, Japan

Teruo Kawasaki