CN2440692Y

CN2440692Y - Autoamtic electronic control circuit for vehicle

Info

Publication number: CN2440692Y
Application number: CN00250626U
Authority: CN
Inventors: 刘文忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-08-22
Filing date: 2000-08-22
Publication date: 2001-08-01
Anticipated expiration: 2010-08-22

Abstract

The utility model relates to a full automatic electronic control circuit for vehicles, which comprises an input unit. The input end of the input unit is connected with a battery which can be used as the input source of voltage, and the output end of the input unit is connected with a control unit which can be used for setting the critical exact position value of the full automatic electronic control circuit for vehicles and detecting whether the voltage of the battery is larger than the critical limited position value. The output end of the control unit is connected with the input of an output unit. The output of the output unit is connected with a plurality of devices in vehicles. The output unit can supply the voltage to a plurality of devices in vehicles when the voltage of the battery is larger than the critical exact position value; inversely, the devices in vehicles have no voltage to be supplied. The utility model has the advantages of practicality and good use effect.

Description

Full automatic vehicle electronic type control circuit

The utility model relates to a kind of full automatic vehicle electronic type control circuit.It is connected with a control circuit on storage battery, when car is flame-out, all power supplies only rely on the voltage on the storage battery, if this control circuit detects the output voltage of this storage battery, the critical accurate position that its value sets greater than this control unit, this control circuit will be communicated with a plurality of in-vehicle apparatus, make the voltage of this storage battery can supply at least one in-vehicle apparatus; Otherwise this control circuit can't be conducted to arbitrary in-vehicle apparatus, and promptly this storage battery will be possessed its voltage capacity, no longer consumes electric weight.

Existing known circuit, be that positive and negative terminal for storage battery is directly connected in a plurality of in-vehicle apparatus (this in-vehicle apparatus comprises power consumer apparatus such as various Warning light on headlight, lampet, clock and the panel), when car is flame-out, the voltage source of this in-vehicle apparatus is provided by this storage battery entirely, this moment is if power consumption is of a specified duration excessively, or the car owner forgets and closes source switchs all in the in-vehicle apparatus, will make this storage battery not have electricity, causes car to restart.

Main purpose of the present utility model is to provide a kind of full automatic vehicle electronic type control circuit, this control circuit is connected on the storage battery of car, and the output voltage values that detects storage battery is controlled the situation that is communicated with of this storage battery and in-vehicle apparatus.

For achieving the above object, the utility model is taked following design plan: this full automatic vehicle electronic type control circuit comprises:

One input block, its input end is connected to the storage battery of using as the voltage input source;

The mouth of input block is connected to a control unit, and this control unit is used for setting the critical reference position value of this control circuit, and whether the voltage that detects above-mentioned storage battery is greater than this critical limit place value;

The input of output termination one output unit of this control unit;

The output of output unit is connected in a plurality of in-vehicle apparatus, and this output unit only during greater than critical reference position value, just must be conducted to voltage a plurality of in-vehicle apparatus at the voltage of this storage battery; Otherwise, no-voltage is conducted to arbitrary in-vehicle apparatus.

The utility model is described in further detail below in conjunction with accompanying drawing

Fig. 1 is a circuit block diagram of the present utility model

Fig. 2-A is the normally opened track circuit status circuit figure of the utility model control circuit

Fig. 2-B is the normally closed line state circuit figure of the utility model control circuit

Fig. 3-A is the normally closed line state circuit figure of another embodiment control circuit

Fig. 3-B is the normally opened track circuit status circuit figure of another embodiment control circuit

Shown in Fig. 1 and Fig. 2-A, the utility model is a kind of full automatic vehicle electronic type control circuit, include unit such as a storage battery 1, a control circuit 2 and a plurality of in-vehicle apparatus 3, this control circuit 2 is to be connected to this storage battery 1, it is made up of an input block 21, a control unit 22 and an output unit 23, wherein

This input block 21 is to be connected to storage battery 1, supplies the voltage of this storage battery 1 to enter, and it is to be connected to form by assemblies such as a diode D1 and bulb L1, and this diode D1 is a protection assembly, uses with protective circuit; The bright degree of this bulb L1 can allow the user understand the voltage swing that this storage battery 1 is present by the bright-dark degree of bulb L1.

This control unit 22, system is connected to the mouth of input block 21, be used for setting the critical reference position value (12.5V) of this control circuit 2, and whether the voltage that detects this storage battery 1 is greater than this critical reference position value, it is by resistance R 1, R2, transistor Q1, assemblies such as a Q2 and a relay R L connect to form, the voltage of this storage battery 1 output via resistance R 1 and resistance R 2 dividing potential drops after, if the base stage of this transistor Q1 is to the voltage at the emitter-base bandgap grading two ends of this transistor Q2, during less than the voltage that drops on resistance R 2 (VR2), cause this transistor Q1, Q2 is triggered and conducting, then this relay R L can be subjected to inhaling magnetic action and form the normally opened track circuit state, that is its common junction B is connected with Chang Kaiduan contact O, that is has voltage to be conducted to output unit 23; Otherwise as Fig. 2-B, then this relay R L can form normally closed line status, that is its public tip node B is connected with normal-closed end contact C, does not have voltage to be conducted to output unit 23.

This output unit 23 is the Chang Kaiduan contact O that is connected to the switch of control unit 22, and its mouth is connected in a plurality of in-vehicle apparatus 3, and this output unit 23 only during greater than critical reference position value, just must be conducted to voltage a plurality of in-vehicle apparatus 3 at the voltage of this storage battery 1; Otherwise, no-voltage is conducted to arbitrary in-vehicle apparatus 3; It is to be connected to form by assemblies such as a light-emitting diode L2 and resistance R 3, when light-emitting diode L2 is bright, represents that this output unit 3 has voltage to enter, and this voltage can use for a plurality of in-vehicle apparatus 3; Otherwise no-voltage enters, and this light-emitting diode L2 can be not shinny, and a plurality of in-vehicle apparatus 3 can't obtain power supply.

As Fig. 3-A, be another embodiment, be that this circuit is connected an electrical generator, and detect the electric weight of storage battery with this control circuit, when the accurate position of electric weight subcritical, allow to allow generator charging to storage battery, when storage battery during greater than this critical accurate position, then cut off being communicated with of storage battery and electrical generator, do not recharge, it includes unit such as a storage battery 1, a control circuit 2 and an electrical generator 4, and this control circuit 2 is to be connected to this storage battery 1, it is made up of an input block 21, a control unit 22 and an output unit 23, wherein:

This input block 21 is to be connected to storage battery 1, and it is to be connected to form by assemblies such as a switch SW, a diode D1 and bulb L1, and when this switch SW one conducting, this input block 21 just can be connected with this storage battery 1 and this electrical generator 4; This diode D1 is a protection assembly, uses with protective circuit; The bright degree of this bulb L1 can allow the user understand the voltage swing that this storage battery 1 is present by the bright-dark degree of this bulb L1.

This control unit 22, system is connected to the mouth of input block 21, it is by resistance R 1, R2, R4, transistor Q1, Q2, assemblies such as one a relay R L and a light-emitting diode L3 connect to form, the voltage of this storage battery 1 output via resistance R 1 and resistance R 2 dividing potential drops after, if the base stage of this transistor Q1 is to the voltage at the emitter-base bandgap grading two ends of this transistor Q2, during less than the voltage that drops on resistance R 2 (VR2), cause this transistor Q1, Q2 is triggered and conducting, then this relay R 1 can be subjected to inhaling magnetic action and form the normally opened track circuit state, that is its common junction B is connected with Chang Kaiduan contact O, that is there is not voltage to be conducted to output unit 23, then this moment, L3 can be shinny, the electric weight that shows this storage battery still on this critical accurate position, needn't charge; Otherwise as Fig. 3-B, then this relay R L can form normally closed line status, that is its public tip node B is connected with normal-closed end contact C, has voltage and is conducted to output unit 23.

This output unit 23, system is connected to the normal-closed end contact C of the switch of control unit 22, it is to be connected to form by assemblies such as a light-emitting diode L2 and resistance B3, when light-emitting diode L2 is bright, represent that this output unit 23 has voltage to enter, promptly the electric weight of this storage battery 1 is lower than this critical accurate position, need charge; Otherwise no-voltage enters, and this light-emitting diode L2 can be not shinny, and promptly this storage battery needn't charge greater than this critical accurate position.

This electrical generator 4, system is connected to the mouth of output unit 23, it is by a starting motor 41, one engine 42 and a generating induction coil 43 are formed, wherein this Starting motor 41 is connected in this engine 42, and this engine 42 is connected in this generating induction coil 43, this generating induction coil 43 is connected in the switch SW of this output unit 21, if when having voltage to be conducted to this electrical generator 4, this Starting motor 41 will be started, and drives this engine 42, by the conversion of energy, make this generating induction coil 43 be converted to electric energy by kinetic force, hereat, this electrical generator 4 is with launched, and this storage battery 1 is given in charging, up to the electric weight of this storage battery 1 greater than this critical accurate position, this moment, this control circuit 2 was got back to the normally opened track circuit state of Fig. 3-A once more, and cut-out is communicated with this electrical generator 4, does not recharge; On the other hand, if off switch SW, also cut off being connected of this electrical generator 4 and this storage battery 1, can't charge.

Be with, see through Autoamtic electronic control circuit for vehicle device of the present utility model, have following characteristics:

(1) if during the critical accurate position that the voltage of this storage battery sets greater than this control circuit, this control circuit will have Voltage supplies to a plurality of in-vehicle apparatus.

(2) if when the voltage of this storage battery is lower than the critical accurate position that this control circuit sets, with no-voltage for to appointing One in-vehicle apparatus makes this storage battery possess its voltage capacity, and no longer power consumption can also be started car next time.

(3) can be applicable to generator is communicated with storage battery, this control circuit sets if the electric weight of storage battery is lower than During critical accurate position, then utilize generator charging to give storage battery, when the critical accurate position that sets greater than this control circuit The time, cut off again generator and be communicated with storage battery, do not recharge.

The utility model has the advantage of: practicality and result of use are good.

Claims

1, a kind of full automatic vehicle electronic type control circuit is characterized in that this control circuit comprises:

The input of output termination one output unit of this control unit;

2, as claim 1 described full automatic vehicle electronic type control circuit, it is characterized in that: described in-vehicle apparatus comprises power consumer apparatus such as various Warning light on headlight, lampet, clock and the panel.

3, as claim 1 described full automatic vehicle electronic type control circuit, it is characterized in that: the mouth of described control circuit output unit connects an electrical generator in addition, when being lower than this critical reference position value, starts the voltage that detects described storage battery this electrical generator, to this storage battery charging, when the electric weight of this storage battery during greater than this critical reference position value, this control circuit cuts off being communicated with of this storage battery and this electrical generator, does not recharge.