CN206186943U - Direct interface arrangement of vehicle control unit - Google Patents
Direct interface arrangement of vehicle control unit Download PDFInfo
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- CN206186943U CN206186943U CN201621287187.9U CN201621287187U CN206186943U CN 206186943 U CN206186943 U CN 206186943U CN 201621287187 U CN201621287187 U CN 201621287187U CN 206186943 U CN206186943 U CN 206186943U
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Abstract
The utility model relates to a car control technical field specificly says so that a function is perfect, rational in infrastructure, the direct interface arrangement of vehicle control unit of reliable operation, its characterized in that is equipped with digital interface circuit, simulation interface circuit and the relay interface circuit who is connected respectively with vehicle control unit, wherein whether the digital interface circuit drops into detection circuitry and is connected with car key position detection circuitry, gearbox gear detection circuitry, stopper respectively, simulation interface circuit is connected with vehicle control unit through power amplifier circuit, and the simulation interface circuit be connected with accelerator pedal control circuit, brake pedal control circuit respectively, the relay that the relay interface circuit is connected all adopts light relay, compared with the prior art, the utility model, has the advantage that rational in infrastructure, job stabilization, long service life, energy consumption low grade are showing.
Description
Technical field
The utility model is related to technical field of automobile control, specifically a kind of perfect in shape and function, it is rational in infrastructure, work can
The entire car controller direct interface device for leaning on.
Background technology
Electric automobile is made up of numerous electrical subsystems.It is entire car controller to play domination and coordinative role（VCU）, vehicle
Exchange information is needed between controller and each subsystem, these information are divided into the major class of instruction and data state two.The mode of exchange
There are two kinds, one kind is direct mode, another kind is indirect mode.So-called direct mode is exactly information by the direct right of port
Connect；So-called indirect mode is exactly that information is transmitted by communication.The former convenient, accurate, reliability is high, but interface wire harness is many
It is many, arrangement is difficult, manpower man-hour expends big, unsuitable multiplex.The latter's wiring is brief, and shielding protection is easily achieved, but has certain
The bit error rate, software redundancy is more heavy.Currently, two ways is used in combination.There are three class direct interfaces at this stage, the first kind is that numeral connects
Mouthful, Equations of The Second Kind is analog interface, and the 3rd class is relay interface.Digital interface, including Transistor-Transistor Logic level specification, CMOS is more
Level specification.Relay interface both include normally opened contact type, also including normally-closed contact type；Its power supply has DC5V,
DC12V, DC24V etc..Species, form as analog interface can be more, cause the level grade of entire car controller corollary apparatus,
Impedance magnitude, speed speed, the parameter such as high precision is low cannot be consistent.
For the direct interface under numerous specifications, there is its advantage：That is exactly the diversity for allowing design, random, favorably
In the protection of proprietary technology.But its shortcoming is also obvious.Firstth, designer is not to do article in terms of content, but
Done things creatively in form inessential；Secondth, accessory discretization adds suddenly in industry, it is difficult to form pillar industry, price is not
Easily reduce；3rd, fittings quality lacks lifting power.
For present situation, it is badly in need of a kind of entire car controller set up on the basis of reliable, safe efficient, energy-conservation and directly connects
Mouth device, it should meet following condition：Meet the requirement of EMC, logic level is not less than TTL, and driving force is the 1.5 of use value
Times, the twisted-pair feeder shielded using band, preferably double shield, without parallel lines, simplify control power supply is strengthened to common mode disturbances
Suppress etc..
The content of the invention
The utility model is for shortcoming and defect present in prior art, it is proposed that a kind of perfect in shape and function, it is rational in infrastructure,
The entire car controller direct interface device of reliable operation.
The utility model can be reached by following measures：
A kind of entire car controller direct interface device, it is characterised in that be provided with the numeral being connected with entire car controller respectively
Interface circuit, analog interface circuit and relay interface circuit, wherein the digital interface circuit is examined with car key position respectively
Whether slowdown monitoring circuit, gearbox-gear detection circuit, brake put into and detect that circuit is connected, and the analog interface circuit is through power
Amplifier circuit is connected with entire car controller, and analog interface circuit is controlled with accelerator pedal control circuit, brake pedal respectively
Circuit is connected, and the relay that the relay interface circuit is connected uses optical relay.
Digital interface circuit described in the utility model uses 5Vcmos interface circuits, and the spacing of the level of H, L two is with power supply electricity
Put down and change, compared with traditional TTL interface circuits, jamproof ability is dramatically increased.
Analog interface circuit described in the utility model is DAC-circuit, and it is the simulation input of 5V to use full scale, while using
Full scale is the simulation output of 5V, for A/D conversion, output impedance≤1 Ω of external analog signal, the input of entire car controller
Impedance >=100 Ω, for D/A conversion, output resistance≤1 Ω of entire car controller, driving force >=0.1A, outside input resistance
>=100k Ω, are provided with amplifier, resistance R1 and resistance R2, wherein the homophase input termination of amplifier in power amplifier circuit
The DAC signals of CPU outputs are received, resistance R1 is connected with the inverting input of amplifier, other end ground connection；Resistance R2 is connected in parallel on amplification
Between device output end and amplifier inverting input, resistance R1 and resistance R2 is used to ensure the output of amplifier in 0-5V scopes
It is interior.
Relay interface circuit described in the utility model includes five kinds of relay interface circuits, respectively normal-open type relay
Output interface circuit, its electric current≤300ma, voltage≤DC 60V；Closed type relay output interface circuit, its electric current≤
300ma, voltage≤DC 60V；Top load normal-open type relay output interface circuit, its electric current≤3.4A（8.6A adds radiator）,
Voltage≤DC 250V；Normal-open type relay input interface circuit, its electric current≤300ma, voltage≤DC 60V；Closed type after
Electrical equipment input interface circuit, its electric current≤300ma, voltage≤60V.
The relay interface circuit that the utility model is used has advantages below：Long service life, non-activity contact, no
Sparking, does not wear and tear；Driving power is small, is calculated by highest driving force, it is only necessary to 30mw, and if 3V powers, this is touched than machinery
The driving power of point mode relay is much smaller, and no more than it, minimum electromagnetic interference, no-spark is to reduce the master of electromagnetic interference
Cause, it is small volume, lightweight, can directly be welded on circuit board, vibration is not produced, vibration is also not concerned about, this is particularly well-suited to car
Application, break-make speed is fast, fast by logical or turn-off speed, about 1/10th of the switching speed of electromagnetic relay, especially
It is adapted to the occasion of frequent folding.
The utility model is compared with prior art, low aobvious with rational in infrastructure, working stability, long service life, energy consumption
The advantage of work.
Brief description of the drawings：
Accompanying drawing 1 is structured flowchart of the present utility model.
Accompanying drawing 2 is the circuit diagram of the utility model intermediate power amplifier circuit.
Accompanying drawing 3 is the structural representation of normal-open type relay output interface circuit in the utility model.
Accompanying drawing 4 is the structural representation of closed type relay output interface circuit in the utility model.
Accompanying drawing 5 is the structural representation of top load normal-open type relay output interface circuit in the utility model.
Accompanying drawing 6 is the structural representation of normal-open type relay input interface circuit in the utility model.
Accompanying drawing 7 is the structural representation of closed type relay input interface circuit in the utility model.
Reference：Entire car controller 1, digital interface circuit 2, analog interface circuit 3, relay interface circuit 4, car key
Whether position detecting circuit 5, gearbox-gear detection circuit 6, brake puts into and detects circuit 7, power amplifier circuit 8, adds
Speed pedal control circuit 9, brake pedal control circuit 10, normal-open type relay output interface circuit 11, closed type relay are defeated
It is outgoing interface circuit 12, top load normal-open type relay output interface circuit 13, normal-open type relay input interface circuit 14, normally closed
Type relay input interface circuit 15.
Specific embodiment：
The utility model is further described below in conjunction with the accompanying drawings.
As shown in drawings, the utility model proposes a kind of entire car controller direct interface device, it is characterised in that be provided with
Digital interface circuit 2, analog interface circuit 3 and the relay interface circuit 4 being connected with entire car controller 1 respectively, wherein
Whether the digital interface circuit 2 puts into car key position detecting circuit 5, gearbox-gear detection circuit 6, brake examine respectively
Slowdown monitoring circuit 7 is connected, and the analog interface circuit 3 is connected through power amplifier circuit 8 with entire car controller 1, analog interface
Circuit 3 is connected with accelerator pedal control circuit 9, brake pedal control circuit 10 respectively, and the relay interface circuit 4 connects
The relay for connecing uses optical relay.
Digital interface circuit described in the utility model 2 uses 5Vcmos interface circuits, and the spacing of the level of H, L two is with power supply electricity
Put down and change, compared with traditional TTL interface circuits, jamproof ability is dramatically increased.
Analog interface circuit described in the utility model 3 is DAC-circuit, and it is the simulation input of 5V to use full scale, while adopting
With the simulation output that full scale is 5V, for A/D conversion, output impedance≤1 Ω of external analog signal, entire car controller it is defeated
Enter impedance >=100 Ω, for D/A conversion, output resistance≤1 Ω of entire car controller, driving force >=0.1A, outside input electricity
Resistance >=100k Ω, are provided with amplifier, resistance R1 and resistance R2, the wherein in-phase input end of amplifier in power amplifier circuit
The DAC signals of CPU outputs are received, resistance R1 is connected with the inverting input of amplifier, other end ground connection；Resistance R2 is connected in parallel on to be put
Greatly between device output end and amplifier inverting input, resistance R1 and resistance R2 is used to ensure the output of amplifier in 0-5V scopes
It is interior.
As shown in figs. 3-7, relay interface circuit 4 described in the utility model includes five kinds of relay interface circuits, point
Wei not normal-open type relay output interface circuit 11, its electric current≤300ma, voltage≤DC 60V；The output of closed type relay connects
Mouth circuit 12, its electric current≤300ma, voltage≤DC 60V；Top load normal-open type relay output interface circuit 13, its electric current≤
3.4A（8.6A adds radiator）, voltage≤DC 250V；Normal-open type relay input interface circuit 14, its electric current≤300ma,
Voltage≤DC 60V；Closed type relay input interface circuit 15, its electric current≤300ma, voltage≤60V.
Digital interface uniquely uses 5V CMOS interfaces, simulation input interface uniquely to use full scale DC in the utility model
5V, input impedance >=100k Ω, entire car controller simulation output interface uniquely uses full scale DC 5V, output impedance ＜ 1 Ω,
Driving force >=0.1A, relay interface uniquely uses optical relay, so that it has infinite life, minimum EMI, antidetonation is driven
Dynamic power is small and the fast advantage of switching speed.The entire car controller was had a surplus using 1 year, did not found any of direct interface
Problem, the reliability of this this direct interface technology of explanation, security can be trust, be announced successfully using vehicle.
The utility model is compared with prior art, low aobvious with rational in infrastructure, working stability, long service life, energy consumption
The advantage of work.
Claims (4)
1. a kind of entire car controller direct interface device, it is characterised in that be provided with the numeral being connected with entire car controller respectively and connect
Mouth circuit, analog interface circuit and relay interface circuit, wherein the digital interface circuit is detected with car key position respectively
Whether circuit, gearbox-gear detection circuit, brake put into and detect that circuit is connected, and the analog interface circuit is put through power
Big device circuit is connected with entire car controller, and analog interface circuit is electric with accelerator pedal control circuit, brake pedal control respectively
Road is connected, and the relay that the relay interface circuit is connected uses optical relay.
2. a kind of entire car controller direct interface device according to claim 1, it is characterised in that the digital interface electricity
Road uses 5Vcmos interface circuits, and the spacing of the level of H, L two changes with power supply electrical level.
3. a kind of entire car controller direct interface device according to claim 1, it is characterised in that the analog interface electricity
Road is DAC-circuit, and it is the simulation input of 5V to use full scale, while it is the simulation output of 5V to use full scale, is become for A/D
Change, output impedance≤1 Ω of external analog signal, input impedance >=100 Ω of entire car controller, for D/A conversion, vehicle control
Output resistance≤1 Ω of device processed, driving force >=0.1A, outside input resistance >=100k Ω is provided with power amplifier circuit
The in-phase input end of amplifier, resistance R1 and resistance R2, wherein amplifier receives the DAC signals of CPU outputs, resistance R1 with put
The inverting input of big device is connected, other end ground connection；Resistance R2 be connected in parallel on amplifier out and amplifier inverting input it
Between, resistance R1 and resistance R2 is used to ensure the output of amplifier in the range of 0-5V.
4. a kind of entire car controller direct interface device according to claim 1, it is characterised in that the relay interface
Circuit includes five kinds of relay interface circuits, respectively normal-open type relay output interface circuit, its electric current≤300ma, voltage
≤DC 60V；Closed type relay output interface circuit, its electric current≤300ma, voltage≤DC 60V；Top load open type relay
Device output interface circuit, its electric current≤3.4A（8.6A adds radiator）, voltage≤DC 250V；Normal-open type relay input connects
Mouth circuit, its electric current≤300ma, voltage≤DC 60V；Closed type relay input interface circuit, its electric current≤300ma, voltage
≤60V。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621287187.9U CN206186943U (en) | 2016-11-29 | 2016-11-29 | Direct interface arrangement of vehicle control unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621287187.9U CN206186943U (en) | 2016-11-29 | 2016-11-29 | Direct interface arrangement of vehicle control unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206186943U true CN206186943U (en) | 2017-05-24 |
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ID=58724291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621287187.9U Active CN206186943U (en) | 2016-11-29 | 2016-11-29 | Direct interface arrangement of vehicle control unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206186943U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106647709A (en) * | 2016-12-29 | 2017-05-10 | 山东优赛新能源科技有限公司 | Direct interface device for whole vehicle controller |
-
2016
- 2016-11-29 CN CN201621287187.9U patent/CN206186943U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106647709A (en) * | 2016-12-29 | 2017-05-10 | 山东优赛新能源科技有限公司 | Direct interface device for whole vehicle controller |
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