CN203271413U - Intelligent automobile window switch based on LIN bus interface - Google Patents
Intelligent automobile window switch based on LIN bus interface Download PDFInfo
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- CN203271413U CN203271413U CN2013202334578U CN201320233457U CN203271413U CN 203271413 U CN203271413 U CN 203271413U CN 2013202334578 U CN2013202334578 U CN 2013202334578U CN 201320233457 U CN201320233457 U CN 201320233457U CN 203271413 U CN203271413 U CN 203271413U
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- automobile window
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Abstract
The utility model relates to an intelligent automobile window switch based on an LIN bus interface. The intelligent automobile window switch based on the LIN bus interface comprises a switch outer shell, a switch knob and a built-in circuit board, and is characterized in that the built-in circuit board comprises a power supply module, a signal collection module, a micro-controller module and an LIN communication module, wherein the power supply module, the signal collection module, the micro-controller module and the LIN communication module are in once connection. The LIN technology is applied to the intelligent automobile window switch, and only an LIN port needs to be connected to an automobile body LIN bus, so that not only is wiring harness cost saved greatly and is the space inside an automobile increased, but also the intelligent automobile window switch has the online fault self-diagnosis function and rapidly detects faults and reduces the number of controllers, the traditional point-to-point control of the automobile window switch is converted into the one point control of an LIN, a well-programmed program is programmed into a controller of the circuit board, a switch LIN pin is led out to be hung on the LIN bus under the condition of ensuring normal power supply, and therefore the purpose that the switch is in communication with an automobile body to control the lifting of an automobile window is achieved.
Description
Technical field
The utility model belongs to based on the body of a motor car electric network of LIN bussing technique controls application, relates to vehicle switch, especially a kind of automobile intelligent car window switch based on the LIN EBI.
Background technology
The automobile window glass lifting, comprise driver side lifting glass for vehicle window, passenger side lifting glass for vehicle window, left back door sidecar window glass up-down, right lateral side lifting glass for vehicle window. at present, the lifting of vehicle glass develops into present electric glass lifting by originally hand-operated lifting.Hand-operated lifting is hand-rail type, and driver or passenger shake by forward and allow glass rising, descend by glass by reverse swinging handle, and this is realized by theory of mechanics.Development along with automotive electronic technology, present automobile window glass lifting is substantially all automatically controlled, the driver side car window switch can be controlled the lifting of four car door glasss for vehicle window, when controlling other three car door lifting glass for vehicle window, the driver side car window switch has priority than other switches.This quasi-tradition electric car window switch is made of switch housing, shift knob, internal circuit board (comprising electronic device) mostly, can find out that the internal circuit board as the conventional electric switch is core, although the function of the switch module of driver side is many than all the other 3 switch modules, but they are all traditional switch modules, its control principle is substantially similar, and namely positive source, relay (perhaps electrical appliance), switch module (traditional switch), power cathode form the circuit loop realization to the control of device.
We think, there is following inferior position in traditional design:
1, the problem that frequently switches on and off some electromagnetic compatibilities of meeting generation of relay, affect the normal operation of its electronic devices and components on every side.
2, traditional car window switch is directly controlled the current loop of lifting glass for vehicle window motor, and the electric current of make-and-break that switch contact is controlled is larger, and its electric current is the ampere level, thus the easy ablation inefficacy of switch contact, poor reliability.
3, traditional switch control is generally man-to-man control, like this each switch need and control object between carry out line, if switching device and the distant such line of control object distance obviously bring a lot of drawbacks as increasing car weight and cost, tied up interior space, information transfer efficiency is not high, if the generation problem also is not easy to maintenance.
4. traditional vehicle window just plays the effect of signals collecting, gives actuating signal of motor, does not possess the supervision effect of motor operating state, and the concrete running status of motor also needs electric machine controller to complete.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art part, a kind of automobile intelligent car window switch based on the LIN EBI is provided, this Intelligent vehicle window switch integrates machinery, electronics, information, realize automobile control function integration, use the LIN technology not only to change the man-to-man control mode of traditional switch, and realized the function with the microprocessor of traditional vehicle window control system hardware components, Hall element, solid-state relay.
The utility model solves its technical problem and is achieved through the following technical solutions:
a kind of automobile intelligent car window switch based on the LIN EBI, comprise switch housing, shift knob, internal circuit board, it is characterized in that: described internal circuit board comprises the power module that once connects, signal acquisition module, micro controller module, the LIN communication module, described power module adopts LM317, described signal acquisition module adopts six tunnel schmidt trigger reverser SN74LS14, described micro controller module adopts the MC9S08MP single-chip microcomputer, this single-chip microcomputer adopts 8 HCS08 CPU, described LIN communication module is selected the MC33661 of LIN interface chip Freescale.
And; PWM module and the A/D modular converter of MC9S08MP inside adopted in the control of described vehicle window direct current generator; this direct current motor drive circuit is selected four triode D1, D2, D3, D4 to form bridge drive circuit and is driven; adopt diode Q1, Q2, Q3, Q4 to protect triode; two delivery outlet U1, U2 of single-chip microcomputer send respectively PWM1 and PWM2 signal, are used for realizing speed governing and the rotating of motor
Advantage of the present utility model and beneficial effect are:
1, this car window switch does not change in the situation of switch external structure, to its built-in circuit structure, electronic devices and components improve and upgrade, added the LIN technology, become a kind of automobile intelligent car window switch with the LIN interface, it has not only solved the technology drawback that traditional switch exists, simplified simultaneously body harness, the maintenance in the automobile use procedure and maintenance have been provided convenience.
2, this car window switch is utilized the LIN technology, only the LIN port need to be received on vehicle body LIN bus, can not only save greatly the wire harness cost, increase interior space, and has an online fault self-diagnosis function, can fast detecting failure, more can reduce amount controller, make car window switch become node of LIN network by traditional point-to-point control, the program burn writing of finishing in the controller of circuit board, under the normal condition of assurance power supply, switch LIN pin is drawn and hang on the LIN bus, realize thus reaching with communicating by letter of vehicle body the purpose that lifting glass for vehicle window is controlled.
3, this car window switch has been cancelled the control of relay by the transceiving chip of single-chip microcomputer and LIN, has greatly improved the dependable with function of switch.
4, this car window switch not only comprises all functions of traditional electric-controlled switch fully, and does not affect the normal operation of other switches in the situation that switch breaks down, and can arrive out of order switch by vehicle body LIN network fast finding with fault test set.
5, this car window switch also has finger, motor-driven and defencive function, and this car window switch can realize directly that the Car window electric machine driving does not namely need electric machine controller.
Description of drawings
Fig. 1 is that intelligent switch inside modules circuit of the present utility model connects simple block diagram;
Fig. 2 is motor-drive circuit figure of the present utility model;
Fig. 3 is software flow pattern of the present utility model.
The specific embodiment
The utility model is described in further detail below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection domain of the present utility model with this.
A kind of automobile intelligent car window switch based on the LIN EBI, comprise switch housing, shift knob, internal circuit board (comprise and realize electronic devices and components), shell is the same with the conventional electric switch with button, internal circuit board is main core technology, internal circuit board comprises power module, signal acquisition module, micro controller module, LIN communication module, its simple block diagram is referring to Fig. 1, with the relation between explanation intelligent switch inside modules Circuits System.
The below introduces respectively the function of modules:
1, power module: stable voltage is provided for whole circuit, adopting LM317 is one of power IC that is most widely used, and it not only has the simple form of fixed three-terminal voltage-stabilizing circuit, possesses again the adjustable characteristics of output voltage.In addition, have also that range of regulation is wide, voltage regulation performance good, noise is low, Ripple Suppression is than advantages of higher, output voltage: 1.25-37V DC, output current: 5mA-1.5A, environment for use temperature :-10-+85 ℃.
2, signal acquisition module: major function is that signals collecting is carried out in the action that switch is arranged, adopt six tunnel schmidt trigger reverser SN74LS14, this module can also can realize control to conventional motors without decoder, but uses decoder that following 2 benefits are arranged:
(1) guarantee that output two or more pins can not occur and high level occur, and can avoid the damage of motor under unexpected condition.
(2) to promoting that Systems balanth plays a role, namely play certain buffer action, this is also an advantage of this circuit design.
3, micro controller module: adopt the MC9S08MP single-chip microcomputer, the MC9S08MP single-chip microcomputer is that Freescale is used the microcontroller product of releasing for Electric Machine Control and digital power etc.
This single-chip microcomputer adopts 8 HCS08 CPU, utilizes the flexibility of the design raising device of compact package, low pin.40 ℃ to 125 ℃ temperature ranges of operating voltage 2.7V-5.5V Shi Ying –, CPU speed is up to 40MHZ, support 48 interruption/replacement sources, 1kb RAM can shorten the development time by the more RAM that are provided for programming, the 16kb flash memory reads/programmes/deletes, and allow the able to programme advantage of user take full advantage of application under any environment almost in.In addition, aspect energy-conservation, this chip has the standby mode of two low-power stop modes and power reduction, allows not interrupt sampling under the power reduction state, has reduced the overall system power consumption.
The interrupt priority level controller (IPC) of this chip, can provide hardware based nested ability aspect peripheral hardware, simplifies the design of software.In addition, the SCI pattern of this device band LIN expansion, and UART communication is provided, simultaneously integrated SPI and IIC.
This Intelligent vehicle window switch mainly uses PWM module and the A/D modular converter of MC9S08MP inside that the vehicle window direct current generator is controlled, and reaches driving and protection to motor, also just comprises anti-pinching car window hand function in its defencive function.The advantages such as motor-drive circuit is selected four triode D1, D2, D3, D4 to form bridge drive circuit and come drive motors as shown in Figure 2, and it is high that triode has switching speed, and conducting resistance is little are suitable in drive circuit; Diode Q1, Q2 in circuit, Q3, Q4 play the effect of protection triode.Two delivery outlet U1, U2 of single-chip microcomputer send respectively PWM1 and PWM2 signal, can be used to realize speed governing and the rotating of motor.When output PWM1 signal, and during PWM2 mouth output low level, the motor forward; Opposite to PWM1 mouth output low level, and PWM2 mouth output signal, motor reverses, and this function can be by being realized by software programming by key control.
Motor rotation blockage (comprising tong) appears in uphill process when vehicle window occurring, large electric current can occur in stall moment, after single-chip microcomputer detects curent change, block pwm signal output by software programming, controller was lost efficacy, and was the purpose that motor stops operating thereby reach.
4, LIN communication module: the MC33661 that selects the simplest LIN interface chip Freescale here.Select this chip can form the combination of MCU+LIN chip, not only reduced cost, and had more versatility.Below 2 be the reason that native system is selected MC33661:
MC33661 is that the simplest transponder chip of LIN is convenient to circuit design, can satisfy the LIN agreement;
MC33661 not only has low-power consumption, and antijamming capability is strong, and can control outside stabilizator.
What need to further illustrate is:
The utility model application is to adopt man-to-man control mode for the orthodox car switch, need to be connected to different control objects by a large amount of wire harness, not only tie up interior space but also increase cost of production, reduce system reliability, the length of a middle-grade car wire harness has on average reached 1600m, nearly 300 joints, 2000 contact pins, wire harness becomes increasingly complex, and connects up more and more difficult, and the burden in Automobile Design, assembling, maintenance has even arrived unaffordable degree.this shows that it is necessary that the car window switch module is optimized design, if in this intelligent switch modular design process, adopt the CAN bussing technique will be unfavorable for that the reduction of cost also can increase technical difficulty, we know in the Body Control design of automobile, the principal element that determines design scheme is cost, Performance And Reliability, and similar car door, car light, vehicle window, air-conditioning, the equipment such as sound equipment are because its function is simple, efficiency of transmission is low, and do not relate to safety issue, therefore there is no need to use the CAN bus, if these equipment rooms use the LIN bus to connect, just performance can not affected, reduce costs greatly on the basis of reliability.The LIN bus is as a kind of serial communication network cheaply, be used for realizing the distributed electronic system control of automobile, target is for the higher CAN of cost provides miscellaneous function, usually the analog signal amount is replaced with data signal in the system that LIN realizes, this will make bus performance optimization.
The automotive window switch module mainly comprises driver side car window switch module, passenger side car window switch module, left back car car window switch module, right back car window switch module, and the intelligent switch of our design is possessing (decline continuously, the crawl decline of traditional vehicle window switch control functions; Rise continuously, crawl rises) simultaneously the function with electric machine controller (electric motor protecting, finger) of novelty incorporate; namely this Intelligent vehicle window switch can replace traditional car window switch and electric machine controller fully; not only solve the problems such as complexity such as wire harness that traditional car window switch causes, more help to realize the centralization of Body Control function.
The driver side switch module can be controlled four vehicle windows, therefore with driver side car window switch module as host node, other three switch modules are as from node, in the vehicle body network, main controlled node can play following 2 effects:
(1) be responsible for to gather various input signal amounts, as: pulsed quantity, analog quantity and the switching value etc. that comprises various gauge taps.Main controlled node detects them by switch contact.
(2) except wanting the collection signal amount, main controlled node also will be undertaken the transfer function of LIN network.It is responsible for sending and accepts message on the LIN bus, simultaneously, be published on network inquire about the coherent signal from node that to find from node by the LIN bus, only send data in the LIN bus under the control of host node from node, in case data are published on bus, any node can receive these data.
Make this practicality switch module become a node of vehicle body LIN network by design, practical application proves that this practicality switch module has low cost, is easy to the advantages such as maintenance, has certain exploitation and promotional value.
Software for Design about the utility model application
Mainly by sending the realization of LIN signal to the control of four lifting glass for vehicle window motors of automobile, make effective, the real-time complete operation of LIN node due to intelligent switch control system, Software for Design is emphasis.Modular thought is adopted in programming, makes that program structure is clear has a capable and alterability of good transplantability, and Fig. 1 is software control flow chart.
By above discussion, the control procedure that specifically is triggered to of this car window switch is: the glass lifting button is moved, the switching signal acquisition system of switch module transformed and was transferred to it in minimum system this moment, after identifying button actions, minimum system is translated into the message form of LIN, realize the interaction of information through LIN communication system and vehicle body LIN network, realize control to the lifting glass for vehicle window motor with this.
Claims (2)
1. automobile intelligent car window switch based on the LIN EBI, comprise switch housing, shift knob, internal circuit board, it is characterized in that: described internal circuit board comprises the power module that once connects, signal acquisition module, micro controller module, the LIN communication module, described power module adopts LM317, described signal acquisition module adopts six tunnel schmidt trigger reverser SN74LS14, described micro controller module adopts the MC9S08MP single-chip microcomputer, this single-chip microcomputer adopts 8 HCS08 CPU, described LIN communication module is selected the MC33661 of LIN interface chip Freescale.
2. the automobile intelligent car window switch based on the LIN EBI according to claim 1; it is characterized in that: PWM module and the A/D modular converter of MC9S08MP inside adopted in the control of described vehicle window direct current generator; this direct current motor drive circuit is selected four triode D1, D2, D3, D4 to form bridge drive circuit and is driven; adopt diode Q1, Q2, Q3, Q4 to protect triode; two delivery outlet U1, U2 of single-chip microcomputer send respectively PWM1 and PWM2 signal, are used for realizing speed governing and the rotating of motor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013202334578U CN203271413U (en) | 2013-05-03 | 2013-05-03 | Intelligent automobile window switch based on LIN bus interface |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013202334578U CN203271413U (en) | 2013-05-03 | 2013-05-03 | Intelligent automobile window switch based on LIN bus interface |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216170A (en) * | 2013-05-03 | 2013-07-24 | 天津五洲元通实业股份有限公司 | Automobile intelligent window switch based on LIN bus port |
| CN105357092A (en) * | 2015-11-24 | 2016-02-24 | 上海德尔福汽车空调系统有限公司 | Turn button Lin bus data structure and communication method for automobile air-conditioner |
| US10649580B1 (en) | 2011-08-05 | 2020-05-12 | P4tents1, LLC | Devices, methods, and graphical use interfaces for manipulating user interface objects with visual and/or haptic feedback |
| CN115174705A (en) * | 2022-06-29 | 2022-10-11 | 智己汽车科技有限公司 | Protocol conversion method and device for in-vehicle communication interface and consumer electronics communication interface |
-
2013
- 2013-05-03 CN CN2013202334578U patent/CN203271413U/en not_active Expired - Fee Related
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| US10649580B1 (en) | 2011-08-05 | 2020-05-12 | P4tents1, LLC | Devices, methods, and graphical use interfaces for manipulating user interface objects with visual and/or haptic feedback |
| US10649581B1 (en) | 2011-08-05 | 2020-05-12 | P4tents1, LLC | Devices, methods, and graphical user interfaces for manipulating user interface objects with visual and/or haptic feedback |
| US10656759B1 (en) | 2011-08-05 | 2020-05-19 | P4tents1, LLC | Devices, methods, and graphical user interfaces for manipulating user interface objects with visual and/or haptic feedback |
| US10788931B1 (en) | 2011-08-05 | 2020-09-29 | P4tents1, LLC | Devices, methods, and graphical user interfaces for manipulating user interface objects with visual and/or haptic feedback |
| US10996787B1 (en) | 2011-08-05 | 2021-05-04 | P4tents1, LLC | Gesture-equipped touch screen system, method, and computer program product |
| US11061503B1 (en) | 2011-08-05 | 2021-07-13 | P4tents1, LLC | Devices, methods, and graphical user interfaces for manipulating user interface objects with visual and/or haptic feedback |
| US11740727B1 (en) | 2011-08-05 | 2023-08-29 | P4Tents1 Llc | Devices, methods, and graphical user interfaces for manipulating user interface objects with visual and/or haptic feedback |
| CN103216170A (en) * | 2013-05-03 | 2013-07-24 | 天津五洲元通实业股份有限公司 | Automobile intelligent window switch based on LIN bus port |
| CN105357092A (en) * | 2015-11-24 | 2016-02-24 | 上海德尔福汽车空调系统有限公司 | Turn button Lin bus data structure and communication method for automobile air-conditioner |
| CN105357092B (en) * | 2015-11-24 | 2019-01-18 | 上海爱斯达克汽车空调系统有限公司 | A kind of knob Lin bus data structure used for automobile air conditioning and the means of communication |
| CN115174705A (en) * | 2022-06-29 | 2022-10-11 | 智己汽车科技有限公司 | Protocol conversion method and device for in-vehicle communication interface and consumer electronics communication interface |
| CN115174705B (en) * | 2022-06-29 | 2023-08-15 | 智己汽车科技有限公司 | Method and equipment for converting protocols of communication interface in vehicle and consumer electronics communication interface |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20140503 |