CN204129471U - Pure electric controller circuit board - Google Patents
Pure electric controller circuit board Download PDFInfo
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- CN204129471U CN204129471U CN201420550221.1U CN201420550221U CN204129471U CN 204129471 U CN204129471 U CN 204129471U CN 201420550221 U CN201420550221 U CN 201420550221U CN 204129471 U CN204129471 U CN 204129471U
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Abstract
Pure electric controller circuit board, it relates to electric controller technical field, the power end of single chip control unit is connected with power circuit, the input end of single chip control unit is connected with switching signal input circuit, analog signal input circuit, rate signal input detecting circuit respectively, the output terminal of single chip control unit is connected with switching signal output circuit, analogue quantity output circuit respectively, and single chip control unit and CAN data transmit-receive circuit are interconnected; Its circuit effect stability and reliable, provides cost savings, improves security, easy to use.
Description
Technical field
The utility model relates to electric controller technical field, is specifically related to a kind of pure electric controller circuit board.
Background technology
Original pure electric controller circuit board adopts PLC to carry out programming as entire car controller, and its shortcoming is as follows: one, cost is high; Two, industrial application PLC is on car, and performance is unreliable.
Summary of the invention
The purpose of this utility model is to provide a kind of pure electric controller circuit board, its circuit effect stability and reliable, provides cost savings, improves security, easy to use.
In order to solve the problem existing for background technology, the utility model adopts following technical scheme: it comprises power circuit, single chip control unit, switching signal output circuit, switching signal input circuit, analog signal input circuit, rate signal input detecting circuit, CAN data transmit-receive circuit, analogue quantity output circuit, the power end of single chip control unit is connected with power circuit, the input end of single chip control unit respectively with switching signal input circuit, analog signal input circuit, rate signal input detecting circuit connects, the output terminal of single chip control unit respectively with switching signal output circuit, analogue quantity output circuit connects, single chip control unit and CAN data transmit-receive circuit are interconnected.
The principle of work of described power circuit is: D0 unilateal conduction prevents power supply from connecing instead, Z1 filters out high-voltage pulse, the filtering circuit voltage that external power source VBB forms through L1 and C0 becomes steady, provides the direct supply of 12V and 5V and 15V through LM2575HVS-12 and LM2575HVS-5 and LM2576S-ADJ to system.
Described single chip control unit adopts Freescale 16 single-chip microcomputer MC9S12XEP100MAG, has stronger antijamming capability, abundant hardware resource, and bus speed faster, can meet the development requirement of vehicle control unit controls unit.
Described switching signal output circuit adopts three MC74HC595 strings to turn and chip, and only need use single-chip microcomputer five I/O ports just can exportable 24 path switching signals.
Described switching signal input circuit adopts two panels SN74HC166N, and parallel signal inputs, and serial data exports to single-chip microcomputer, only need use single-chip microcomputer 3 I/O ports and become the input detection that can realize 16 path switching signals.
The simulating signal of the input of described analog signal input circuit makes through the voltage follower that AD8659 (integrated four high guaily unit) forms the AD conversion pin being input to single-chip microcomputer after signal isolation and impedance transformation, carries out AD sampling calculate input voltage by single-chip microcomputer.
The rate signal of the input of described rate signal input detecting circuit obtains rectangular pulse signal and is input to single-chip I/O mouth after LM339 (integrated four voltage comparators) carries out wave shaping, and pulse counts, and calculates the speed of a motor vehicle.
The two-way CAN transceiver that described CAN data transmit-receive circuit adopts two panels 82C250 (CAN transceiving chip) to form carries out the transmitting-receiving of data to CAN.
Described analogue quantity output circuit adopts two panels TLV5618AID(DA conversion chip) form two-way DA change-over circuit, single-chip microcomputer by SCLK and DIN of TLV5618AID voltage data serial input to TLV5618AID, by comparing with the reference voltage of REF port after TLV5618AID receives data, magnitude of voltage is outputted to OUTA and OUTB.The signal of OUTA and OUTB exports to outside electric machine controller through the amplification of amplifier.
The utility model has following beneficial effect: circuit effect stability and reliable, provides cost savings, improves security, easy to use.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the schematic diagram of power circuit in the utility model;
Fig. 3 is the schematic diagram of single chip control unit in the utility model; Wherein Fig. 3 (a) be single chip control unit upper part, lower part that Fig. 3 (b) is single chip control unit;
Fig. 4 is the schematic diagram of the utility model breaker in middle signal output apparatus;
Fig. 5 is the schematic diagram of the utility model breaker in middle signal input circuit;
Fig. 6 is the schematic diagram of analog signal input circuit in the utility model;
Fig. 7 is the schematic diagram of the utility model speed signal input detecting circuit;
Fig. 8 is the schematic diagram of CAN data transmit-receive circuit in the utility model;
Fig. 9 is the schematic diagram of analogue quantity output circuit in the utility model.
Embodiment:
Referring to Fig. 1, this embodiment adopts following technical scheme: it comprises power circuit 1, single chip control unit 2, switching signal output circuit 3, switching signal input circuit 4, analog signal input circuit 5, rate signal input detecting circuit 6, CAN data transmit-receive circuit 7, analogue quantity output circuit 8, the power end of single chip control unit 2 is connected with power circuit 1, the input end of single chip control unit 2 respectively with switching signal input circuit 4, analog signal input circuit 5, rate signal input detecting circuit 6 connects, the output terminal of single chip control unit 2 respectively with switching signal output circuit 3, analogue quantity output circuit 8 connects, single chip control unit 2 and CAN data transmit-receive circuit 7 are interconnected.
Referring to Fig. 2, the principle of work of described power circuit 1 is: D0 unilateal conduction prevents power supply from connecing instead, Z1 filters out high-voltage pulse, the filtering circuit voltage that external power source VBB forms through L1 and C0 becomes steady, provides the direct supply of 12V and 5V and 15V through LM2575HVS-12 and LM2575HVS-5 and LM2576S-ADJ to system.
Referring to Fig. 3, described single chip control unit 2 adopts Freescale 16 single-chip microcomputer MC9S12XEP100MAG, has stronger antijamming capability, abundant hardware resource, and bus speed faster, can meet the development requirement of vehicle control unit controls unit.
Referring to Fig. 4, described switching signal output circuit 3 adopts three MC74HC595 strings to turn and chip, and only need use single-chip microcomputer five I/O ports just can exportable 24 path switching signals.As figure: QA--QH is parallel data output terminal.SFTCLK is input end of clock, and rising edge of a pulse makes the data shifts of data register.LCHCLK is latches data port, and rising edge of a pulse is more new data.RST: reset and reset data, Low level effective.OE: chip enable, high level is forbidden exporting, the enable output of low level.SDI: serial data input.Data just can be input to by software the output that MC74HC595 realizes the switching signal of 24 passages by Single-chip Controlling these ports in a serial fashion, simple and practical, the upgrading of convenient software is in the future transplanted, and simplifies the design of PCB, decreases the probability that fault occurs simultaneously.24 channel signals that MC74HC595 exports amplify through BTS721L1 and the ULN2803 rate of doing work more just can control outside electrical equipment.
Referring to Fig. 5, described switching signal input circuit 4 adopts two panels SN74HC166N, and parallel signal inputs, and serial data exports to single-chip microcomputer, only need use single-chip microcomputer 3 I/O ports and become the input detection that can realize 16 path switching signals.As figure: A--H is parallel data input end.CLK clock inputs, and rising edge triggers.S/L latches data, Low level effective, now by A--H mouth latches data.QH and SI is that chip connection level exports and input.Single-chip Controlling S/L and CLK just may be read into 16 path switching signals.
Referring to Fig. 6, the simulating signal of the input of described analog signal input circuit 5 makes through the voltage follower that AD8659 (integrated four high guaily unit) forms the AD conversion pin being input to single-chip microcomputer after signal isolation and impedance transformation, carries out AD sampling calculate input voltage by single-chip microcomputer.
Referring to Fig. 7, the rate signal of the input of described rate signal input detecting circuit 6 obtains rectangular pulse signal and is input to single-chip I/O mouth after LM339 (integrated four voltage comparators) carries out wave shaping, pulse counts, and calculates the speed of a motor vehicle.
Referring to Fig. 8, the two-way CAN transceiver that described CAN data transmit-receive circuit 7 adopts two panels 82C250 (CAN transceiving chip) to form carries out the transmitting-receiving of data to CAN.As figure: external bus is linked to CANH and CANL of 82C250 through the filtering of EMIFILTER and the high voltage protective of PESD1CAN, and 82C250 carries out exchanges data by TXD and RXD and single-chip microcomputer again.
Referring to Fig. 9, described analogue quantity output circuit 8 adopts two panels TLV5618AID(DA conversion chip) form two-way DA change-over circuit, single-chip microcomputer by SCLK and DIN of TLV5618AID voltage data serial input to TLV5618AID, by comparing with the reference voltage of REF port after TLV5618AID receives data, magnitude of voltage is outputted to OUTA and OUTB.The signal of OUTA and OUTB exports to outside electric machine controller through the amplification of amplifier.
This embodiment has following beneficial effect: circuit effect stability and reliable, provides cost savings, improves security, easy to use.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (1)
1. pure electric controller circuit board, it is characterized in that it comprises power circuit (1), single chip control unit (2), switching signal output circuit (3), switching signal input circuit (4), analog signal input circuit (5), rate signal input detecting circuit (6), CAN data transmit-receive circuit (7), analogue quantity output circuit (8), the power end of single chip control unit (2) is connected with power circuit (1), the input end of single chip control unit (2) respectively with switching signal input circuit (4), analog signal input circuit (5), rate signal input detecting circuit (6) connects, the output terminal of single chip control unit (2) respectively with switching signal output circuit (3), analogue quantity output circuit (8) connects, single chip control unit (2) and CAN data transmit-receive circuit (7) are interconnected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420550221.1U CN204129471U (en) | 2014-09-24 | 2014-09-24 | Pure electric controller circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420550221.1U CN204129471U (en) | 2014-09-24 | 2014-09-24 | Pure electric controller circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204129471U true CN204129471U (en) | 2015-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420550221.1U Active CN204129471U (en) | 2014-09-24 | 2014-09-24 | Pure electric controller circuit board |
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| CN (1) | CN204129471U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108375943A (en) * | 2018-05-16 | 2018-08-07 | 苏州麦垛信息科技有限公司 | A kind of SCM Based editable vending machine wiring board |
| CN108873759A (en) * | 2017-05-10 | 2018-11-23 | 腾讯科技（深圳）有限公司 | A kind of circuit, circuit protection method and electronic equipment |
-
2014
- 2014-09-24 CN CN201420550221.1U patent/CN204129471U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108873759A (en) * | 2017-05-10 | 2018-11-23 | 腾讯科技（深圳）有限公司 | A kind of circuit, circuit protection method and electronic equipment |
| CN108873759B (en) * | 2017-05-10 | 2021-05-28 | 腾讯科技（深圳）有限公司 | Circuit, circuit protection method and electronic equipment |
| CN108375943A (en) * | 2018-05-16 | 2018-08-07 | 苏州麦垛信息科技有限公司 | A kind of SCM Based editable vending machine wiring board |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |