JPH0277836U

JPH0277836U -

Info

Publication number: JPH0277836U
Application number: JP15735188U
Authority: JP
Priority date: 1988-12-02
Filing date: 1988-12-02
Publication date: 1990-06-14

Description

[Brief explanation of drawings]

第１図は本考案の基本構成図、第２図はその波
形説明図、第３図はパルスのデユーテイ比が可変
の本考案に係る一実施例回路構成、第４図はパル
スのデユーテイ比が固定の本考案に係る他の実施
例回路構成、第５図は電源電圧の降下を考慮に入
れた本考案の基本構成図、第６図はその一実施例
回路構成、第７図はエンジン暖機の一実施例構成
、第８図，は水温に対するヒータへの電源供
給時間付与説明図、第９図は，は第７図のタ
イムチヤート、第１０図は本考案の車用リレー駆
動回路が使用されている暖機制御部の具体的回路
の一実施例構成を示している。図中、１は遅延回路、２は発振回路、３はアン
ド回路、４は入力端子、５はリレー駆動回路、６
はリレー、２６はアンド回路、２７はコンパレー
タ、３５はスタータ、・スイツチ、３６はバツテ
リ、３７は暖機制御部、３８は水温センサ、３９
，４０はリレー、４１，４２はヒータ、４３，４
４はランプを表している。 Figure 1 is a basic configuration diagram of the present invention, Figure 2 is an explanatory diagram of its waveform, Figure 3 is an example circuit configuration of the present invention in which the pulse duty ratio is variable, and Figure 4 is the pulse duty ratio variable. Figure 5 is a basic configuration diagram of the present invention that takes into account the power supply voltage drop, Figure 6 is the circuit configuration of one example, and Figure 7 is a circuit configuration of another embodiment of the fixed invention. Figure 8 shows the configuration of an embodiment of the machine, Figure 8 is an explanatory diagram of the power supply time to the heater depending on the water temperature, Figure 9 is the time chart of Figure 7, and Figure 10 shows the vehicle relay drive circuit of the present invention. The configuration of one embodiment of a specific circuit of the warm-up control section being used is shown. In the figure, 1 is a delay circuit, 2 is an oscillation circuit, 3 is an AND circuit, 4 is an input terminal, 5 is a relay drive circuit, 6
is a relay, 26 is an AND circuit, 27 is a comparator, 35 is a starter switch, 36 is a battery, 37 is a warm-up control section, 38 is a water temperature sensor, 39
, 40 is a relay, 41, 42 is a heater, 43, 4
4 represents a lamp.

Claims

[Scope of Claim for Utility Model Registration] (1) Delaying the relay energization signal in a relay drive circuit device for diesel engines that energizes the relay before starting the engine to supply power to the heater and warm up the vehicle. an oscillation circuit that uses the relay activation signal delayed by the delay circuit as a trigger to generate a pulse signal with a cycle shorter than the suction opening time of the relay core; and a pulse signal of the oscillation circuit. and an AND circuit that takes an AND with the above relay energizing signal, and after energizing the relay with the first relay energizing signal that energizes the relay, the pulse signal of the oscillation circuit maintains the energization of the relay. A relay drive circuit device for a car, which is characterized by: (2) In the above claim (1), a comparator that compares the battery voltage applied to the relay with a predetermined reference voltage, and a control terminal that controls the oscillation of the pulse signal of the oscillation circuit are provided, the control terminal A vehicle for a vehicle, characterized in that the output signal of the comparator is input to the terminal, and when the power supply voltage of a battery that energizes the relay decreases, the power supply voltage of the battery directly energizes the relay. Relay drive circuit device.