CN101704358A - Vehicle signal control method based on CAN bus and device thereof - Google Patents

Vehicle signal control method based on CAN bus and device thereof Download PDF

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Publication number
CN101704358A
CN101704358A CN200910224489A CN200910224489A CN101704358A CN 101704358 A CN101704358 A CN 101704358A CN 200910224489 A CN200910224489 A CN 200910224489A CN 200910224489 A CN200910224489 A CN 200910224489A CN 101704358 A CN101704358 A CN 101704358A
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China
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module
group
bus
signal
control
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Pending
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CN200910224489A
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Chinese (zh)
Inventor
张育华
吴迪
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Hengchi Science & Technology Co Ltd Zhenjiang
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Hengchi Science & Technology Co Ltd Zhenjiang
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Priority to CN200910224489A priority Critical patent/CN101704358A/en
Publication of CN101704358A publication Critical patent/CN101704358A/en
Pending legal-status Critical Current

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Abstract

The invention provides a vehicle signal control method based on CAN bus and a device thereof, and is particularly applicable to the control on harness equipment. A control module which is provided with a CAN communication interface is arranged nearby or on a device, therefore, the control module completes the essential drive to a serviced device and the function of collecting sensing signals; and by the CAN communication interface, the data exchange and instruction transmission of the control modules arranged at different physical positions of a vehicle are realized, the digital control function of a finished vehicle is achieved, and the original needed hundreds of leads are saved, and the module arranged nearby device can be expanded infinitely.

Description

A kind of vehicle signal control method and device based on the CAN bus
Technical field
The present invention is a kind of method and apparatus that is applied to signals of vehicles control, is particularly useful for the control of body harness equipment.
Background technology
Various function and usage leads accumulative totals in motorcoach reach several kilometers, and vehicle will hold so long down lead certainly will will increase volume, and has increased the deadweight of vehicle, and the entire arrangement of vehicle is had certain influence, and material cost is also bigger.Particularly for rear-engined motorcoach, its engine power system places the rear portion of vehicle, and the operational order of chaufeur is at vehicle front, and chaufeur also need be monitored the working condition of power system.Traditional way is the power system that each control of front end and operating order is delivered to the rear end by a rule lead, and the information of power system also is to be delivered to the front end instrument desk by many groups lead, and simultaneously the rear vehicle end lamp system also needs lead to receive the front end instrument desk to carry out control operation.
Based on development of electronic technology, particularly controller local area network (is called for short: the CAN) widespread use of bussing technique on auto communication, make that adopting the CAN bussing technique to be used for signals of vehicles control becomes possibility, thereby can save the wire harness consumptive material greatly, simplify body harness, save resource, cost-cutting.
The present invention utilizes the communication function of CAN bus, proposes a kind of vehicle signal control method and device that is intended to simplify wire harness in conjunction with electronic sensor and actuation techniques.
Summary of the invention
The invention reside in to the required control of vehicle transmit on the device of information or near be provided with the control module of CAN communication interface, necessity that control module is finished institute's service unit drives and the transducing signal acquisition function, realizes that by the CAN bus data exchange of being located at the different physical location control modules of vehicle transmits, reaches car load Digital Control function with instruction.
For sake of convenience, it is example elaboration the present invention that this paper adopts at motorcoach front end instrument desk and rear end power and two modules of signal system, and a plurality of modular systems are complied with routine analogy.Example of the present invention comprises front-end module (2) and rear module (3,4,5), and front-end module is connected by CAN bus (1) with rear module.
Described front-end module (2) comprises one group of instrument and one group of gauge panel indicator lamp (16) of controlling and driving, gathers one group of gauge panel master cock (17) signal simultaneously.Rear module comprises the one group of signal lamp (20) and a group relay (21) of controlling and driving, gathers one group of analog sensor (18) signal simultaneously, group alarm switching value (a 19) signal,
The instrument that is controlled by an electronic control unit in the front-end module comprises vehicle speed mileage meter (8), engine speed indicator (9).Wherein, comprise oil measurer (10), one-level Low Air Pressure in Brake (11), (12) three little tables of two stage braking air-pressure gauge in the car speed mileage table, comprise excel tester (13), oil pressure gauge (14), (15) three little tables of coolant water temperature table in the engine speed indicator.Instrument adopts the mode of pulse duration modulation (being called for short PWM) to control, and the PWM dutycycle is big more, and the meter hand deflection angle is big more.
Described gauge panel indicator lamp (16), comprise ignition light, air-conditioning is opened indicator lamp, the engine preheating indicator lamp, fog lamp is opened indicator lamp, the reversing indicator lamp, the Parking indicator lamp, charging indicator light, left turn indicator lamp, right turn indicator lamp, lampet is opened indicator lamp, the too high alarm lamp of cooling water temperature, coolant storage tank water-level alarm lamp, the hypotony alarm lamp, engine oil pressure is crossed low alarm lamp, air filter stops up alarm lamp etc. and controlled it lights and close by front-end module except alarm lamp, other indicator lamps are all by gauge panel master cock direct control electric power loop.
Described gauge panel master cock (17) comprises ignition lock, air conditioning switch, engine preheating switch, fog lamp switch, radiator switch, reversing switch, Parking switch, BK Brake Switch, little light switch, left steering switch, right steering switch, flank indicator switch, boot door switch.Front-end module is gathered the action of these switching values.
One group of analog sensor (18) signal that described rear module is gathered comprises vehicle speed signal, fuel tank fuel quantity signal, one-level braking pressure signal, two stage braking air pressure signal, engine rotational speed signal, engine oil pressure signal, coolant water temperature signal.
The group alarm switch (19) that described rear module is gathered comprises that the one-level braking pressure crosses low alarm switch, two stage braking air pressure and cross that low alarm switch, the too high alarm switch of cooling water temperature, engine oil pressure are crossed low alarm switch, air filter stops up alarm switch.
One of controlling and driving group of signal lamp (20) in the described rear module comprises left-hand rotation lamp, right-hand rotation lamp, backing-up lamp, parking lamp, fog lamp, baggage container gate light, flank indicator, stoplight stop lamp.
A group relay (21) of controlling and driving comprises radiator control relay, air-conditioning control relay, ignition control relay, boot door control relay, engine preheating control relay in the described rear module.
When the master cock of front-end module is operated, relevant indicator lamp meeting operation response on the front-end module, front-end module sends to rear module with control data by the CAN bus simultaneously, and rear module is according to Data Control respective actuators (as lamp, the relay) work that receives.
Rear module pick-up transducers and switch (6) signal also changes into control data and sends to front-end module by the CAN bus, and front-end module is according to Data Control actr (7) action that receives, as the deflection angle of meter hand or drive corresponding device thereof.
The invention has the beneficial effects as follows: the signal transmission of intermodule only needs 2 leads, has saved the original lead that needs with up to a hundred.Based on the CAN bussing technique, module is installed nearby and can unrestrictedly be expanded.
Description of drawings
Fig. 1 system chart of the present invention
1, CAN bus; 2, front-end module; 3, the 1st rear module; 4, the 2nd rear module;
5, n rear module; 6, sensor and switch; 7, actr;
Fig. 2 module map of the present invention
8, car speed mileage table; 9, engine speed indicator; 10, oil measurer
11, one-level Low Air Pressure in Brake; 12, two stage braking air-pressure gauge; 13, excel tester;
14, oil pressure gauge; 15, coolant water temperature table; 16, one group of gauge panel indicator lamp;
17, one group of gauge panel master cock; 18, one group of analog sensor; 19, a group alarm switch;
20, one group of signal lamp; 21, a group relay;
The specific embodiment
As shown in Figure 1, 2,13 path switching signals of front-end module Acquisition Instrument dial plate, for example ought open left-hand rotation switch wherein, the electric power loop of left-hand rotation indicator lamp is switched on and lights on the gauge panel, the transition activities of on-off signal is collected by front-end module simultaneously, front-end module is issued rear module with this variation with the data mode of CAN frame, and rear module parses data and glimmers by integrated circuit control left rotaring signal lamp.
13 path switching signals of front-end module Acquisition Instrument dial plate, for example ought open ignition lock wherein, the electric power loop of ignition light is switched on and lights on the gauge panel, the transition activities of on-off signal is collected by front-end module simultaneously, front-end module is issued rear module with this variation with the data mode of CAN frame, and rear module parses data and controls corresponding ignition relay adhesive by integrated circuit.
Rear module is gathered 7 road transducing signals, the signal that collects is converted to digital signal and issues front-end module with the data mode of CAN frame, front-end module reaches the purpose of control average speed indicator needle deflection angle according to the dutycycle of the Data Control corresponding instrument PWM that receives.
Rear module is gathered No. 5 alarm switch signals, for example when the too high alarm switch of coolant water temperature moves, the transition activities of on-off signal is collected by rear module, rear module is issued front-end module with this variation with the data mode of CAN frame, and front-end module parses data and lights by integrated circuit control coolant water temperature alarm lamp.

Claims (4)

1. the signals of vehicles control setup based on the CAN bus is characterized in that comprising front-end module (8) and rear module (9), and front-end module is connected by CAN bus (1) with rear module.
2. a kind of signals of vehicles control setup based on the CAN bus according to claim 1 is characterized in that front-end module (2) comprises vehicle speed mileage meter (8), engine speed indicator (9), one group of gauge panel indicator lamp (16) and one group of gauge panel master cock (17).
3. a kind of signals of vehicles control setup based on the CAN bus according to claim 1 is characterized in that rear module comprises one group of analog sensor (14), a group alarm switch (19), one group of signal lamp (20) and a group relay (21).
4. vehicle signal control method based on the CAN bus, it is characterized in that front-end module Acquisition Instrument dial plate master cock signal, rear module is gathered analog sensor signal and alarm switch signal, front-end module is issued rear module with the information that collects with CAN frame form, the rear module resolution data is also controlled the actr action, and rear module can have n and by the total wire joint of CAN.
CN200910224489A 2009-11-24 2009-11-24 Vehicle signal control method based on CAN bus and device thereof Pending CN101704358A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200910224489A CN101704358A (en) 2009-11-24 2009-11-24 Vehicle signal control method based on CAN bus and device thereof

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Application Number Priority Date Filing Date Title
CN200910224489A CN101704358A (en) 2009-11-24 2009-11-24 Vehicle signal control method based on CAN bus and device thereof

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CN101704358A true CN101704358A (en) 2010-05-12

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102019875A (en) * 2010-12-07 2011-04-20 田祖德 Single-wire communication type car clamp control system
CN103481798A (en) * 2012-06-08 2014-01-01 镇江恒驰科技有限公司 CAN (controller area network) bus-based driving-driven distribution type control system of electric vehicle driven by hub motors
CN104890784A (en) * 2015-06-10 2015-09-09 邢春会 Electric bicycle control system based on bus communication technology
CN107948033A (en) * 2016-10-13 2018-04-20 比亚迪股份有限公司 Light rail train, light rail train instrument and its communication means and system
CN110979217A (en) * 2019-11-15 2020-04-10 汉纳森(厦门)数据股份有限公司 Vehicle control method and device and vehicle

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102019875A (en) * 2010-12-07 2011-04-20 田祖德 Single-wire communication type car clamp control system
CN102019875B (en) * 2010-12-07 2012-12-05 田祖德 Single-wire communication type car clamp control system
CN103481798A (en) * 2012-06-08 2014-01-01 镇江恒驰科技有限公司 CAN (controller area network) bus-based driving-driven distribution type control system of electric vehicle driven by hub motors
CN104890784A (en) * 2015-06-10 2015-09-09 邢春会 Electric bicycle control system based on bus communication technology
CN107948033A (en) * 2016-10-13 2018-04-20 比亚迪股份有限公司 Light rail train, light rail train instrument and its communication means and system
CN110979217A (en) * 2019-11-15 2020-04-10 汉纳森(厦门)数据股份有限公司 Vehicle control method and device and vehicle

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Open date: 20100512