CN202134153U

CN202134153U - ECU analog device of electronic control motor

Info

Publication number: CN202134153U
Application number: CN201120225712U
Authority: CN
Inventors: 刘均; 鲍海森; 王贵; 曾佳
Original assignee: Shenzhen Launch Software Co Ltd
Current assignee: Shenzhen Launch Software Co Ltd
Priority date: 2011-06-29
Filing date: 2011-06-29
Publication date: 2012-02-01
Anticipated expiration: 2021-06-29

Abstract

The utility model relates to an ECU (Electronic Control Unit) analog device of an electronic control motor. The ECU analog device includes a main control CPU, a power supply system, a K line circuit, a CAN bus circuit, a UART circuit and an OBDII interface. The main control CPU connects electrically with the K line circuit, the CAN bus circuit and the UART circuit separately. The power supply system connects electrically with the main control CPU and the UART circuit to supply power to the main control CPU and the UART circuit. The OBDII interface connects electrically with the K line circuit, the CAN bus circuit and the power supply system separately to provide K line data, CAN bus data and power supply to external devices. By using the ECU analog device of the electronic control motor, the cost on original ECU equipment in a research & development and a production link is lowered substantially, and the testing and verifying procedures of the production link are simplified. The ECU analog device of the electronic control motor in the utility model has a simple structure and a low cost, and can be vastly applied to a production process of accessory products of ECU equipment of a motor in a certain specification.

Description

Electric-control motor ECU analogue means

Technical field

The utility model relates to automobile production equipment, relates in particular to a kind of electric-control motor ECU analogue means.

Background technology

Electric-control motor ECU (electronic control unit) is a motor car engine core control hardware system, is the nerve center in the whole automobile electric control system.Development along with automotive engineering; The increasing automotive interior that is applied to of electronic control system when research and development or the supporting vehicle electronics product of production engine, needs to buy the original-pack ECU of engine and carry out technical identification; Especially at production link, need a large amount of ECU to carry out production test and checking.

But; Because it is higher to buy the price of ECU system of the former factory of engine; And since produce or R&D process in for belonging to destructive under a lot of situation of the experiment of ECU, cause the damage of ECU easily, if make a big purchase the former ECU of factory in large quantities the cost of whole research and development and production link is increased greatly.

The utility model content

Therefore, the purpose of the utility model is to avoid the expensive of the original-pack ECU of mass purchase engine, designs a kind of electric-control motor ECU analogue means that in production and R&D process, is used for substituting the former ECU of factory of engine.

For realizing above-mentioned purpose, the utility model provides a kind of electric-control motor ECU analogue means, and it comprises master cpu, power-supply system, K line circuit, CAN bus circuit, UART circuit and OBDII interface; This master cpu electrically connects K line circuit, CAN bus circuit and UART circuit respectively; This power-supply system electrically connects this master cpu, UART circuit respectively with to its out-put supply, and this OBDII interface electrically connects K line circuit, CAN bus circuit and power-supply system respectively to supply K line data, CAN bus data and power supply output indescribably to exterior portions.

Wherein, said master cpu is a NXP LPC2368 chip.

Wherein, the ECU data of the simulation of outside input input to said master cpu via said UART circuit.

In sum; The utility model electric-control motor ECU analogue means; Can reduce the cost of buying the former ECU of factory equipment in a large number in research and development and production link; Simplify the test and the checking flow process of production link, the utility model electric-control motor ECU analogue means is simple in structure, with low cost, can number of applications in the Engine ECU coordinative composition of equipments process of producing product of certain model.

For further setting forth the utility model is technological means and the effect that the predetermined purpose of realization is taked; See also following detailed description and accompanying drawing about the utility model; Believe purpose, characteristic and the characteristics of the utility model; Should obtain thus going deep into and concrete understanding, yet accompanying drawing only provides reference and explanation usefulness, is not to be used for the utility model is limited.

Description of drawings

Below in conjunction with accompanying drawing, describe in detail through embodiment the utility model, the technical scheme that makes the utility model and other beneficial effects is obvious.

In the accompanying drawing,

Fig. 1 is the circuit block diagram of the utility model electric-control motor ECU analogue means one preferred embodiment;

Fig. 2 is the CAN bus circuit circuit diagram of the utility model electric-control motor ECU analogue means one preferred embodiment;

Fig. 3 is the K line circuit circuit diagram of the utility model electric-control motor ECU analogue means one preferred embodiment;

Fig. 4 is that the application system of the utility model electric-control motor ECU analogue means connects synoptic diagram.

Embodiment

As shown in Figure 1, it is the circuit block diagram of the utility model electric-control motor ECU analogue means one preferred embodiment.The preferred embodiment of this electric-control motor ECU analogue means comprises master cpu 10, power-supply system 11, K line circuit 12, CAN (controller local area network) bus circuit 13, UART (universal asynchronous receiving-transmitting) circuit 14 and OBDII (OBD II) interface 15; This master cpu 10 electrically connects K line circuit 12, CAN bus circuit 13 and UART circuit 14 respectively; This power-supply system 11 electrically connects this master cpu 10, UART circuit 14 respectively with to its out-put supply, and this OBDII interface 15 electrically connects K line circuit 12, CAN bus circuit 13 and power-supply system 11 respectively to supply K line data, CAN bus data and power supply output indescribably to exterior portions.Wherein, master cpu 10 can adopt NXP LPC2368 chip.The ECU data of the simulation of outside input input to master cpu 10 via UART circuit 14.

Referring to Fig. 2 and Fig. 3, Fig. 2 is the CAN bus circuit circuit diagram of the utility model electric-control motor ECU analogue means one preferred embodiment, and Fig. 3 is the K line circuit circuit diagram of this preferred embodiment.CAN bus circuit shown in Figure 2 and K line circuit shown in Figure 3 can specifically be applied in the circuit structure of the utility model electric-control motor ECU analogue means.This preferred embodiment is a master cpu with NXP LPC2368, builds circuit through discrete component, constitutes one road CAN bus circuit, one road K line circuit, thereby forms the main hardware structure of simple and easy ECU.

Referring to Fig. 4; It is the application system connection synoptic diagram of the utility model electric-control motor ECU analogue means; Combine Fig. 1 to know simultaneously, the master cpu NXP LPC2368 of electric-control motor ECU analogue means 1 is connected to through the UART circuit on the serial ports (RS232) of PC 2, and the ECU data that the Control Software of operation is sent simulation on the PC 2 are to NXP LPC2368; NXP LPC2368 broadcasts data through the CAN bus circuit after the serial data of PC 2 is handled.NXP LPC2368 receives the CAN data on the bus through the CAN bus circuit simultaneously; Receive from the data on the K line through the KWP2000 agreement on the K line circuit, and respond according to concrete packet; CAN bus data and K line data and power-supply system export outside main frame 3 to through standard OBDII-16 external interface; Constitute complete simulation ECU system; For main frame 3; Electric-control motor ECU analogue means 1 is identical with the real former ECU of factory via the output of OBDII interface, thereby substitutes the expensive former ECU of factory equipment.

The above; For the person of ordinary skill of the art; Can make other various corresponding changes and distortion according to the technical scheme and the technical conceive of the utility model, and all these changes and distortion all should belong to the protection domain of the utility model accompanying Claim.

Claims

1. an electric-control motor ECU analogue means is characterized in that, comprises master cpu, power-supply system, K line circuit, CAN bus circuit, UART circuit and OBDII interface; This master cpu electrically connects K line circuit, CAN bus circuit and UART circuit respectively; This power-supply system electrically connects this master cpu, UART circuit respectively with to its out-put supply, and this OBDII interface electrically connects K line circuit, CAN bus circuit and power-supply system respectively to supply K line data, CAN bus data and power supply output indescribably to exterior portions.

2. electric-control motor ECU analogue means as claimed in claim 1 is characterized in that, said master cpu is a NXP LPC2368 chip.

3. electric-control motor ECU analogue means as claimed in claim 1 is characterized in that, the ECU data of the simulation of outside input input to said master cpu via said UART circuit.