JPS5920379U

JPS5920379U - Vehicle data recording device

Info

Publication number: JPS5920379U
Application number: JP11334082U
Authority: JP
Inventors: 健伊藤
Original assignee: 日産自動車株式会社
Priority date: 1982-07-28
Filing date: 1982-07-28
Publication date: 1984-02-07

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は車両実験で使用しているデータ収録装置に基づ
いて得られた従来装置の回路ブロック図、第２図は従来
装置のデータ収録処理を示したプログラムフロー図、第
３図は従来装置の信号波形を示したタイムチャート図、
第４図は本考案の一実施例を示した回路ブロック図、第
５図は本考案におけるデータ収録処理のプログラムフロ
ー図、第　　　′６図は第４図の実施例における動作波
形を示したタイムチャート図である。１・・・ｃｐｕ、２・・・ＲＯＭ、３・・・ＰｉＡ、４
・・・Ａ／ＤＭＰＸ、５・・・増幅部、６・・・ＲＡＭ
、？・・・クロック発振器、８・・・分周器、９・・・
単安定マルチバイブレータ、１２・・・バッファ、１４
・・・電源リレー、１４ａ・・・リレー接点、１６・・
・予備電源、１８・・・リセット回路、１０・・・第１
のトリガ信号発生回路、２０・・・トリガ回路、３０・
・・第２トリガ信号発生回路。バ祷１届　　　　　　　　　　　　　　　　　　　　　
　　　　　　　　　　　　　　−一一一１　←■解”Ｉ
−ｒｌ輯ケト□ ＧＮ τ１−「Ｉ惰←−；１　町冒拍イ猛■居扉１１１、Ｊ−”°１１１−↓　１１１１１Figure 1 is a circuit block diagram of a conventional device obtained based on the data recording device used in vehicle experiments, Figure 2 is a program flow diagram showing the data recording process of the conventional device, and Figure 3 is a conventional device. A time chart diagram showing the signal waveform of
Figure 4 is a circuit block diagram showing an embodiment of the present invention, Figure 5 is a program flow diagram of data recording processing in the present invention, and Figure '6 is a time diagram showing operating waveforms in the embodiment of Figure 4. It is a chart diagram. 1...cpu, 2...ROM, 3...PiA, 4
...A/DMPX, 5...Amplification section, 6...RAM
,? ... Clock oscillator, 8... Frequency divider, 9...
Monostable multivibrator, 12...buffer, 14
...Power relay, 14a...Relay contact, 16...
- Backup power supply, 18... Reset circuit, 10... 1st
trigger signal generation circuit, 20... trigger circuit, 30.
...Second trigger signal generation circuit. Prayer 1 submission
−1111 ←■Solution”I
-rl輯ket□ GN τ1-"I inert←-; 1 Town attack I fierce ■ Door 11 1, J-"°111-↓ 11111

Claims

[Scope of Claim for Utility Model Registration] A data processing unit that detects predetermined vehicle data each time a signal is input and sequentially stores it in a memory, and a data recording cycle of the data processing unit is set. Based on a timing means that generates a timing signal of a constant period and an on/off signal of an ignition switch,
a power supply means that continuously supplies power to the data processing section when the engine is operating, and intermittently supplies power to the data processing section in synchronization with the timing signal when the engine is stopped; and the timing of the timing means. a first trigger signal generation means that generates a trigger signal in synchronization with the signal; a second trigger signal generation means that generates a trigger signal after the power supply means is intermittently supplied with power; while the engine is operating; a trigger signal that selects the output of the first trigger signal generation means and outputs it to the data processing section when the engine is stopped, and selects the output of the second trigger signal generation means and outputs it to the data processing section while the engine is stopped; A data recording device for a vehicle, comprising a selection output means.