CN101480937A - Vehicle body control system based on LIN bus - Google Patents
Vehicle body control system based on LIN bus Download PDFInfo
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- CN101480937A CN101480937A CNA2008102339024A CN200810233902A CN101480937A CN 101480937 A CN101480937 A CN 101480937A CN A2008102339024 A CNA2008102339024 A CN A2008102339024A CN 200810233902 A CN200810233902 A CN 200810233902A CN 101480937 A CN101480937 A CN 101480937A
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Abstract
The invention discloses a vehicle body control system based on an LIN bus, comprising an LIN1 bus sub-system and an LIN2 bus sub-system. The LIN1 bus sub-system comprises a node connected with a front vehicle body controller, a main driver door controller, a copilot door controller, a front vehicle lamp controller, a vehicle body burglarproof controller and an automatic windscreen wiper controller. The LIN2 bus sub-system comprises a node connected with a rear vehicle body controller, a rear vehicle lamp controller, a left rear door controller, a right rear door controller and a reversing radar controller. After adopting the technical scheme, the invention reduces the cost of a low-end communication network, solves the problems of wiring harness increase and wiring harness arrangement which are caused by the acute increase of in-vehicle electronic devices. The vehicle body control system has the advantages of simplified design of whole electric system, reduction of a large amount of wiring harness, enhancement of the flexibility of the design and improvement of the reliability of the system and is beneficial to the development of a distributed vehicle body control system.
Description
Technical field
The invention belongs to the technical field of auto electric control, relate to body control system, more particularly, the present invention relates to a kind of body control system based on the LIN bus.
Background technology
Along with number of electric parts in the vehicle sharply increases, the electric system of automobile becomes and becomes increasingly complex.Some statistics show that the shared ratio of electronics package will reach 40% to 50% in the automobile.Therefore cause the quantity of wire harness in the automobile to get more and more and to become increasingly complex, this has brought a lot of problems, has increased the difficulty that the car load wire harness is arranged, and has caused very burden for the fitting work of automaker and Automobile Service Factory; And a large amount of wire harness have increased the weight of car load, be unfavorable for improving fuel efficiency and performance, and the point of connection of One's name is legion have increased potential faults.Therefore introducing communication network in the car manages the electronics package that increases gradually and is very important.Thereby integrated each subsystem that automotive networking can be flexible is realized more complicated system, has reduced interior wire harness of car and car weight amount simultaneously and has reached the increase of the cost that is brought by ECU (Electrical Control Unit), and improved the reliability of automotive electrical system.
Summary of the invention
Problem to be solved by this invention provides a kind of body control system based on the LIN bus, its objective is to make car load electric system design simplification, and improves the reliability of system.
To achieve these goals, the technical scheme taked of the present invention is:
This body control system based on the LIN bus provided by the present invention comprises LIN1 bus sub and LIN2 bus sub; Wherein, described LIN1 bus sub comprises and front body controller, main door controller, copilot door controller, front car light controller, vehicle body anti-theft controller, the automatic wiper controller bonded assembly node driven; Described LIN2 bus sub comprises and back car body controller, back Lighting Controller, left back door controller, right back door controller, Reverse Sensor controller bonded assembly node.
For making the present invention more perfect, more detailed and concrete technical scheme below also further having proposed, to obtain best practical function, realize goal of the invention better, and improve novelty of the present invention and creativeness:
Described front body controller and back car body controller are two nodes on the CAN bus, and the required communication signal of described LIN1 bus sub and LIN2 bus sub transmits by the CAN bus.
Described LIN1 bus sub and front body controller bonded assembly node are the major joint of LIN1 bus sub; Described LIN1 bus sub with main drive door controller, copilot door controller, front car light controller, vehicle body anti-theft controller, automatic wiper controller bonded assembly node be the LIN1 bus sub from node.
Described LIN2 bus sub is the major joint of LIN2 bus sub with back car body controller bonded assembly node; Described LIN2 bus sub and back Lighting Controller, left back door controller, right back door controller, Reverse Sensor controller bonded assembly node be the LIN2 bus sub from node.
The present invention adopts technique scheme, has realized the control system of auto body and the distribution that is connected of CAN network control system.The LIN bus is in the application of body control system, reduced the cost of low side communication network, solved rapid wire harness increase and the wire harness Layout Problem of being brought that increase of electronics package in the car, make car load electric system design simplification, reduce a large amount of wire harness, increase the design-calculated alerting ability simultaneously, improved the reliability of system, helped the exploitation of distributed body control system.
Description of drawings
Below expressed content of each width of cloth accompanying drawing of this specification sheets and the mark among the figure are made brief description:
Fig. 1 is the body control system topological diagram based on the LIN bus;
Fig. 2 is that front body controller and preceding lamp dimmer communication function realize block diagram;
Fig. 3 is that the front body controller is realized block diagram with the main door controller communication function of driving;
Fig. 4 is that front body controller and copilot door controller communication function realize block diagram;
Fig. 5 is that front body controller and anti-theft loudspeaker controller communication function realize block diagram;
Fig. 6 is that front body controller and automatic wiper controller communication function realize block diagram;
Fig. 7 is that the back car body controller is realized block diagram with back lamp dimmer communication function;
Fig. 8 is that back car body controller and left back door controller communication function realize block diagram;
Fig. 9 is that back car body controller and right back door controller communication function realize block diagram;
Figure 10 is that back car body controller and Reverse Sensor controller communication function realize block diagram;
Figure 11 is that preceding lamp dimmer hardware is realized block diagram;
Figure 12 is LIN bus hardware interface circuit figure.
Be labeled as among the figure:
1, LIN1 bus sub, 2, the LIN2 bus sub, 3, the front body controller, 4, back car body controller, 5, the main door controller of driving, 6, the copilot door controller, 7, front car light controller, 8, vehicle body anti-theft controller, 9, the automatic wiper controller, 10, the back Lighting Controller, 11, left back door controller, 12, right back door controller, 13, the Reverse Sensor controller, 14, the CAN bus.
The specific embodiment
Contrast accompanying drawing below, by description to embodiment, to effect and principle of work, the manufacturing process of the mutual alignment between the shape of the specific embodiment of the present invention such as related each member, structure, the each several part and annexation, each several part and manipulate method etc., be described in further detail, inventive concept of the present invention, technical scheme had more complete, accurate and deep understanding to help those skilled in the art.
Of the present invention structure, function and the communication modes expressed as Fig. 1 to Figure 12, the present invention is a kind of body control system based on the LIN bus.
LIN (Local Interconnect Network) is a kind of network of serial communication cheaply, is used for realizing the distributed electronic system control of automobile.The target of LIN is to provide additional function for existing automotive networking (for example CAN bus).Therefore, the LIN bus is a kind of auxiliary bus network.Not needing CAN bus width and multi-functional occasion,, use the LIN bus can save cost greatly such as the communication between intelligent transducer and the brake equipment.
In the LIN specification, except that having defined basic agreement and Physical layer, developing instrument and application software interface have also been defined.The LIN communication is based on SCI (UART) data format, adopts the pattern of single master controller/many slave units, only uses the node synchronized clocke line of a 12V signal bus and a NO Fixed Time benchmark.This pattern of serial communication cheaply and corresponding development environment are formulated to standard by LIN association.The normalisation of LIN will for automaker and supplier at research and development, application, operating system cost-cutting.
The solution of LIN bus is to be created by numerous automakers and semiconductor company in 1999, its objective is in order to find sub-more cheaply bus network, as using the auxiliary of CAN communication network widely.The LIN network is based on hypotactic, uses single-wire communication, has reduced the weight and the expense of a large amount of wire harness.The LIN target application is the idling slow speed system of the performance, bandwidth and the complexity that do not need CAN, comprises the control of the aspect such as back mirror, door lock, automatic seat, automatic window, windscreen wiper, Lighting System of car as Switch load or position type system.LIN more helps to realize in the automobile and CAN network bonded assembly dcs.The LIN bus has reduced the cost of low side communication network in the application of body control system, has increased the design-calculated alerting ability simultaneously, has improved the reliability of system, helps the exploitation of distributed body control system.Therefore the LIN bus has good prospects for application at automotive field, and the LIN bus also can be used on industry and field of household appliances as a kind of open protocol in addition, realize not high to rate request, the communication of short range bonded assembly equipment room.
Autobody control system mainly comprises light control, car door control, windscreen wiper control, the antitheft control of vehicle body, automatic seat control etc., the groundwork of these controls is that the quantity of state of gathering various switches drives the load action according to these quantity of states, so the controlled object of body control system mainly is the devices such as lamp, motor, electromagnetic valve and switching value of different capacity.They are less demanding to the real-time of information transfer, so the communication network of body control system adopts the category-A standard to get final product.Numerous just car manufactures of LIN bussing technique and semiconductor company unite the open bus protocol standard of the automobile-used communication network of category-A of proposition.Consider that simultaneously body control system is relatively responsive to cost, the LIN bus with its cheaply advantage become the first-selection of body control system network.
In order to solve the problem that exists at the described present known technology of this specification sheets background technology part and to overcome its defective, realize making car load electric system design simplification, and improve the goal of the invention of the reliability of system that the technical scheme that the present invention takes is:
As shown in Figure 1, this body control system based on the LIN bus provided by the present invention comprises LIN1 bus sub 1 and LIN2 bus sub 2; Wherein, described LIN1 bus sub 1 comprises and front body controller 3, main door controller 5, copilot door controller 6, front car light controller 7, vehicle body anti-theft controller 8, the automatic wiper controller 9 bonded assembly nodes driven; Described LIN2 bus sub 2 comprises and back car body controller 4, back Lighting Controller 10, left back door controller 11, right back door controller 12, Reverse Sensor controller 13 bonded assembly nodes.
Concrete structure of the present invention is as described below:
One, with being connected of CAN bus 14:
Front body controller of the present invention and back car body controller are two nodes on the CAN bus 14, and described LIN1 bus sub 1 and LIN2 bus sub 2 required communication signals transmit by CAN bus 14.
Two, the annexation in the LIN1 bus sub 1:
Three, the annexation in the LIN2 bus sub 2:
Described LIN2 bus sub 2 is the major joint of LIN2 bus sub 2 with back car body controller 4 bonded assembly nodes; Described LIN2 bus sub 2 and back Lighting Controller 10, left back door controller 11, right back door controller 12, Reverse Sensor controller 13 bonded assembly nodes be LIN2 bus sub 2 from node.
The function and the circuit that provide each component part of system below constitute:
One, system's implementation:
(1) major joint of front body controller 3:LIN1 bus sub 1 is the CAN bus node simultaneously.It realizes that mainly function is:
1, switch acquisition: gather lighting switch signal, back mirror on-off signal, wiper switch signal, key gear signal etc.;
2, ceiling light, windscreen wiper etc. before the control.
3, lighting switch status signal, back mirror switch state signal, wiper switch status signal, key gear signal are sent on the LIN1 bus;
4, receive vehicle door status signal, car light status signal, anti-theft loudspeaker status signal, automatic wiper status signal etc. from the LIN1 bus;
5, signal forwarding such as the vehicle door status signal that will receive from the LIN1 bus, car light status signal receive for other CAN nodes on the CAN bus.
(2) front car light controller 7:(is as shown in Figure 2) LIN1 bus sub 1 from one of node.It realizes that mainly function is:
1, control front car light: passing light, country beam, front position lamp, front directional, side steering indicating light installed, adverse-weather lamp, headlight are regulated motor, headlight washing motor etc.;
2, passing light status signal, country beam status signal, front position lamp status signal, front directional status signal, side steering indicating light installed status signal, adverse-weather lamp status signal, headlight adjustment state signal, headlight washing status signal etc. are sent on the LIN1 bus;
3, receive passing light on-off signal, main furnace building light switch signal, front position light switch signal, front directional on-off signal, side steering indicating light installed on-off signal, adverse-weather lamp on-off signal, headlight by-pass cock signal, headlight wash switch signal, key gear signal from the LIN1 bus.
(3) mainly drive door controller 5:(as shown in Figure 3) LIN1 bus sub 1 from one of node.It realizes that mainly function is:
1, switch acquisition: gather car window switch signal, door switch signal etc.;
2, control vehicle window, back mirror, door lock, gate light etc.;
3, Jiang Men opens status signal, door switch signal, door lock state signal etc. and sends on the LIN1 bus;
4, receive back mirror on-off signal, key gear signal etc. from the LIN1 bus.
(4) copilot door controller 6:(is as shown in Figure 4) LIN1 bus sub 1 from one of node.It realizes that mainly function is:
1, switch acquisition: gather car window switch signal, door switch signal etc.;
2, control vehicle window, back mirror, door lock, gate light etc.;
3, Jiang Men opens status signal, door lock state signal etc. and sends on the LIN1 bus;
4, receive back mirror on-off signal, central controlled lock on-off signal, window lifting on-off signal, key gear signal etc. from the LIN1 bus.
(5) vehicle body anti-theft controller 8:(is as shown in Figure 5) LIN1 bus sub 1 from one of node.
It realizes that mainly function is:
1, the buzzing of control anti-theft loudspeaker is reported to the police;
2, vehicle guard mode signal, alarm cycle signal, loudspeaker faults signal, internal cell breakdown signal, LIN communication failure signal etc. are sent on the LIN1 bus;
3, the sound frequency request signal that sends from LIN1 bus reception major joint, alarm cycle request signal, alarm sound type requests signal, warning tone request signal, vehicle guard mode request signal etc.
(6) automatic wiper controller 9 (as shown in Figure 6): LIN1 bus sub 1 from one of node.
It realizes that mainly function is:
1, detects rainfall, the control windscreen wiper;
2, automatic lamp bright signal, rain shaving electrical machine working signal, automatic wiper controller failure signal etc. are sent on the LIN1 bus;
3, the windscreen wiper gear signal of sending from LIN1 bus reception major joint, wash switch signal, windscreen wiper working state signal, windscreen wiper sensitivity signal, windscreen wiper position signal, washing mode signal etc.
(1) back car body controller 4:(is as shown in Figure 7) major joint of LIN2 bus sub 2 is the CAN bus node simultaneously.It realizes that mainly function is:
1, switch acquisition: gather back ceiling light switch input signal etc.;
2, control back ceiling light, boot etc.;
3, lighting switch status signal, back wiper switch status signal, reverse on-off signal, key gear signal, vehicle speed signal, window lifting signal, central controlled lock on-off signal etc. are forwarded on the LIN2 bus from the CAN bus;
4, receive vehicle door status signal, back car light status signal, Reverse Sensor status signal etc. from the LIN2 bus;
5, the vehicle door status signal that will receive from the LIN2 bus, back car light status signal, Reverse Sensor status signal etc. are forwarded on the CAN bus and receive for other CAN nodes.
(2) left back door controller 11:(is as shown in Figure 8) LIN2 bus sub 2 from one of node.
It realizes that mainly function is:
1, switch acquisition: gather right back car window switch status signal, right back door switch signal;
2, control left back vehicle window, left back door lock, gate light etc.;
3, Jiang Men opens status signal, and lock state letter equal sign sends on the LIN2 bus;
4, receive central controlled lock on-off signal, window lifting signal, key gear signal etc. from the LIN2 bus.
(3) right back door controller 12:(is as shown in Figure 9) LIN2 bus sub 2 from one of node.
It realizes that mainly function is:
1, switch acquisition: gather right back car window switch status signal, right back door switch signal;
2, control left back vehicle window, left back door lock, gate light etc.;
3, Jiang Men opens status signal, and it is first-class that lock status signal sends to the LIN2 bus;
4, receive central controlled lock on-off signal, window lifting signal, key gear signal etc. from the LIN2 bus.
(4) Reverse Sensor controller 13:(is as shown in figure 10) LIN2 bus sub 2 from one of node.It realizes that mainly function is:
1, control Reverse Sensor;
2, receive vehicle speed signal, reverse on-off signal etc. from the LIN2 bus;
3, will pop one's head in working state signal, probe failure signal, system failure signal, reversing buzzing frequency signal, backing distance signal etc. send on the LIN2 bus.
Two, the hardware circuit of LIN bus is realized:
Below before lamp dimmer be that example is introduced its hardware circuit implementation: (as shown in figure 11)
Because Body Control is not high to the data transmission rate request, and takes all factors into consideration for aspects such as cost and performance reliabilities, the microcontroller of this hardware circuit adopts 8 automobile specified microprocessors of Freescale, and model is MC9S08AW.
The power drive chip of all lamp loads adopts the MC3389 of Freescale.
The chip for driving of headlight adjusting and headlight cleaning motor is selected the MC3388 of Freescale for use.
The LIN bus transceiver is selected the TJA1020 at grace intelligence Pu for use.
LIN bus interface circuit figure as shown in figure 12.
In conjunction with the accompanying drawings the present invention has been carried out exemplary description above; obviously specific implementation of the present invention is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present invention design and technical scheme carry out; or design of the present invention and technical scheme are directly applied to other occasion without improving, all within protection scope of the present invention.
Claims (4)
1, a kind of body control system based on the LIN bus is characterized in that: described body control system comprises LIN1 bus sub (1) and LIN2 bus sub (2); Wherein, described LIN1 bus sub (1) comprises and front body controller (3), main door controller (5), copilot door controller (6), front car light controller (7), vehicle body anti-theft controller (8), automatic wiper controller (9) the bonded assembly node driven; Described LIN2 bus sub (2) comprises and back car body controller (4), back Lighting Controller (10), left back door controller (11), right back door controller (12), Reverse Sensor controller (13) bonded assembly node.
2, according to the described body control system of claim 1 based on the LIN bus, it is characterized in that: described front body controller and back car body controller are last two nodes of CAN bus (14), and the required communication signal of described LIN1 bus sub (1) and LIN2 bus sub (2) transmits by CAN bus (14).
3, according to claim 1 or 2 described body control systems based on the LIN bus, it is characterized in that: described LIN1 bus sub (1) is the major joint of LIN1 bus sub (1) with front body controller (3) bonded assembly node; Described LIN1 bus sub (1) with main drive door controller (5), copilot door controller (6), front car light controller (7), vehicle body anti-theft controller (8), automatic wiper controller (9) bonded assembly node be LIN1 bus sub (1) from node.
4, according to claim 1 or 2 described body control systems based on the LIN bus, it is characterized in that: described LIN2 bus sub (2) is the major joint of LIN2 bus sub (2) with back car body controller (4) bonded assembly node; Described LIN2 bus sub (2) and back Lighting Controller (10), left back door controller (11), right back door controller (12), Reverse Sensor controller (13) bonded assembly node be LIN2 bus sub (2) from node.
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| CNA2008102339024A CN101480937A (en) | 2008-12-17 | 2008-12-17 | Vehicle body control system based on LIN bus |
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| CNA2008102339024A CN101480937A (en) | 2008-12-17 | 2008-12-17 | Vehicle body control system based on LIN bus |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979260A (en) * | 2010-11-10 | 2011-02-23 | 力帆实业(集团)股份有限公司 | Control system and control method for combined taillight of automobile |
| CN102221468A (en) * | 2010-04-16 | 2011-10-19 | 哈尔滨工业大学 | Automobile body LIN sub-node detection platform and detection method |
| CN102501813A (en) * | 2011-10-28 | 2012-06-20 | 浙江万超电器有限公司 | Automobile body control system |
| CN102602392A (en) * | 2012-04-06 | 2012-07-25 | 辉创电子科技(苏州)有限公司 | Parking control device based on LIN (local interconnect network) communication |
| CN103264671A (en) * | 2013-05-31 | 2013-08-28 | 上海沪工汽车电器有限公司 | 12v system intelligent centralized control electric appliance box based on LIN bus |
| CN104639355A (en) * | 2013-11-14 | 2015-05-20 | 广州汽车集团股份有限公司 | LIN (local interconnect network) communication scheduling setting method |
| CN104773121A (en) * | 2015-05-06 | 2015-07-15 | 奇瑞汽车股份有限公司 | Bus controller for automobile steering column |
| CN106183982A (en) * | 2016-07-25 | 2016-12-07 | 江苏科技大学 | Rearview mirror is blocked control device and method by car power windows rainproof greasy weather gas |
| CN106853804A (en) * | 2015-12-09 | 2017-06-16 | 上海琪埔维半导体有限公司 | The door device control method and system of central controller, Car's door controlling node |
| US10131273B2 (en) | 2016-06-16 | 2018-11-20 | Ford Global Technologies, Llc | Lighting module for a motor vehicle |
| US10137829B2 (en) | 2016-10-06 | 2018-11-27 | Ford Global Technologies, Llc | Smart drop off lighting system |
| US10300844B2 (en) | 2016-06-16 | 2019-05-28 | Ford Global Technologies, Llc | Device for indicating a turn signal on a motor vehicle window |
| CN112747109A (en) * | 2019-10-31 | 2021-05-04 | 上海汽车集团股份有限公司 | Vehicle gear identification method and device |
| CN113815547A (en) * | 2020-06-19 | 2021-12-21 | 比亚迪股份有限公司 | Vehicle control system, equipment and vehicle |
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| CN102221468A (en) * | 2010-04-16 | 2011-10-19 | 哈尔滨工业大学 | Automobile body LIN sub-node detection platform and detection method |
| CN101979260A (en) * | 2010-11-10 | 2011-02-23 | 力帆实业(集团)股份有限公司 | Control system and control method for combined taillight of automobile |
| CN101979260B (en) * | 2010-11-10 | 2013-03-20 | 力帆实业(集团)股份有限公司 | Control method for combined taillight of automobile |
| CN102501813A (en) * | 2011-10-28 | 2012-06-20 | 浙江万超电器有限公司 | Automobile body control system |
| CN102602392A (en) * | 2012-04-06 | 2012-07-25 | 辉创电子科技(苏州)有限公司 | Parking control device based on LIN (local interconnect network) communication |
| CN103264671B (en) * | 2013-05-31 | 2015-09-30 | 上海沪工汽车电器有限公司 | A kind of 12 Fu Xitongzhinengji based on LIN bus control electrical appliance kit |
| CN103264671A (en) * | 2013-05-31 | 2013-08-28 | 上海沪工汽车电器有限公司 | 12v system intelligent centralized control electric appliance box based on LIN bus |
| CN104639355A (en) * | 2013-11-14 | 2015-05-20 | 广州汽车集团股份有限公司 | LIN (local interconnect network) communication scheduling setting method |
| CN104639355B (en) * | 2013-11-14 | 2017-12-01 | 广州汽车集团股份有限公司 | A kind of LIN communication schedulings method to set up |
| CN104773121B (en) * | 2015-05-06 | 2018-02-16 | 奇瑞汽车股份有限公司 | A kind of bus control unit for car steering tube column |
| CN104773121A (en) * | 2015-05-06 | 2015-07-15 | 奇瑞汽车股份有限公司 | Bus controller for automobile steering column |
| CN106853804A (en) * | 2015-12-09 | 2017-06-16 | 上海琪埔维半导体有限公司 | The door device control method and system of central controller, Car's door controlling node |
| US10300844B2 (en) | 2016-06-16 | 2019-05-28 | Ford Global Technologies, Llc | Device for indicating a turn signal on a motor vehicle window |
| US10131273B2 (en) | 2016-06-16 | 2018-11-20 | Ford Global Technologies, Llc | Lighting module for a motor vehicle |
| CN106183982A (en) * | 2016-07-25 | 2016-12-07 | 江苏科技大学 | Rearview mirror is blocked control device and method by car power windows rainproof greasy weather gas |
| US10137829B2 (en) | 2016-10-06 | 2018-11-27 | Ford Global Technologies, Llc | Smart drop off lighting system |
| US10434938B2 (en) | 2016-10-06 | 2019-10-08 | Ford Global Technologies, Llc | Smart drop off lighting system |
| CN112747109A (en) * | 2019-10-31 | 2021-05-04 | 上海汽车集团股份有限公司 | Vehicle gear identification method and device |
| CN113815547A (en) * | 2020-06-19 | 2021-12-21 | 比亚迪股份有限公司 | Vehicle control system, equipment and vehicle |
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Application publication date: 20090715 |