CN1912784A - Central control system for vehicle control - Google Patents
Central control system for vehicle control Download PDFInfo
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- CN1912784A CN1912784A CNA2005100365406A CN200510036540A CN1912784A CN 1912784 A CN1912784 A CN 1912784A CN A2005100365406 A CNA2005100365406 A CN A2005100365406A CN 200510036540 A CN200510036540 A CN 200510036540A CN 1912784 A CN1912784 A CN 1912784A
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Abstract
A central control system used to control vehicle is prepared as setting steering shaft under steering wheel to control vehicle direction, connecting speed reducer at bottom of steering shaft and connecting speed reducer to clutch and motor in sequence, using motor to provide power assistance and acting power assistance on clutch, loading said power assistance on steering shaft by clutch to increase regulation ability of steering wheel.
Description
Technical field
The invention relates to and a kind ofly carry out the central control system of Communication Control, mainly comprise power windows control system, automatic wiping system and automobile safety-protection system etc. by the LIN bus.
Background technology
Its principle of work of existing central control system mainly contains following several: the first is mechanical, be that manual manipulation window lifting, manual manipulation windscreen wiper and mechanical type are antitheft etc., reason because of its physical construction, vehicle body is relatively heavier, control is required great effort, driving comfort is not high and the not high shortcoming of anti-theft security, is eliminated just gradually at present; It two is to utilize electron controls technology, promptly electronic window lifting, manual manipulation windscreen wiper and the fixed code alarm etc. controlled.But the electronic actuators of most of domestic productions (ECU) adopts discrete electronic component, as direct insertion resistance, electric capacity, triode, high power relay etc.This discrete ECU volume is big, wire harness is various, installation and maintenance are difficult, thereby causes the increase of complete vehicle weight, has increased the fuel consumption of automobile.
Summary of the invention
The technical problem to be solved in the present invention is to overcome in the prior art defective easily such as vehicle safety, comfortableness, fault detect, has proposed a kind of distributed central control system based on the LIN communication network.
Another object of the present invention provides a kind of central control system that is used for vehicle control, but the house dog of this control system centralized control vehicle, vibration detection warning, car door illumination, car door lock, windscreen wiper and relevant detection information, can make the control system in the car unified, be convenient to realize automatic control to vehicle, and safe and reliable.
Based on this, the present invention is achieved in that
A kind of central control system that is used for vehicle control, it comprises five parts, be respectively host node part, pilothouse from node section, passenger's (right front door, left back door, right back door) from node section, wiper from node section, rain sensor from node section; Wherein host node connect respectively rain sensor from node, pilothouse from node, back rain strip device from node and passenger from node, each is that operation independently is set from node, only be connected with host node, controlled by host node, the formation and the annexation of above-mentioned various piece are as follows:
Host node realizes that mainly house dog, body vibrations detection alarm carry out functions such as LIN communicates by letter with other from node; Include power supply, main MCU, watchdog module, vehicle detection alarm module and communication interface, main MCU is as central control unit, play leading control computing effect, it connects watchdog module, vehicle detection alarm module and communication interface respectively, power supply provides power for above-mentioned module and main MCU, communication interface is the LIN interface, and host node is to realize and other communication that is connected from node by LIN;
Pilothouse is mainly realized motor-driven (being the electronic window lifting of controlling), car door illuminating lamp, car door lock control, the action of passing through other three vehicle windows of the total line traffic control of LIN and door lock and LIN communication function etc. from node; It includes pilothouse MCU, motor drive module, car door lighting module, car door lock module and communication interface, pilothouse MCU is the central processing unit of this node section, it connects motor drive module, car door lighting module, car door lock module respectively, and be connected with host node by communication interface, the communication of maintenance and host node, its communication interface is the LIN interface;
The passenger is from node, main motor-driven (being the electronic window lifting of controlling), car door illuminating lamp, car door lock control and the LIN communication function etc. realized, it includes passenger MCU, motor drive module, car door lighting module, car door lock car door die sinking piece and communication interface, passenger MCU is the central processing unit of this node section, it connects motor drive module, car door lighting module, car door lock car door die sinking piece respectively, and be connected with host node by communication interface, the communication of maintenance and host node, its communication interface is the LIN interface;
Wiper is from node, and windscreen wiper receives the windscreen wiper speed control signal of host node from node section; Rain sensor realizes the rainfall information that collects is sent to by the LIN bus function of host node from node; It includes windscreen wiper MCU and communication interface, and windscreen wiper MCU carries out communication by this communication interface and host node, and this communication interface is the LIN interface.
The above-mentioned central control system that is used for vehicle control, it adopts host node as master control system, and with LIN to each from the node communication, realization is implemented unified control to each from node, finished the control of various aspects such as car door, windscreen wiper, car door illumination, safety detection in the automobile, and various piece can control separately by MCU independently again, and is easy to use, safe and reliable.
And integrated control mode is convenient to save cost, reduces manufacturing cost, also can reduce simultaneously required parts are installed, and is convenient to install, and is in use also reliable, control problem can not occur easily after debugging is good.
Wherein, the host node part also is provided with the wiper signal detection module, and the combined switch signal input of wiper is detected, and judged the duty of the required execution of windscreen wiper,
Above-mentioned from node, also be respectively arranged with independently power supply, to provide power to various piece, power supply mainly is connected on the MCU of various piece, in needs, also can connect with each module on.
The described central control system that is used for vehicle control, its host node also are connected with independent reception and the telepilot part that is provided with, and are used to receive wireless control signal, and according to instructing to host node transmission signals, executable operations.
The above-mentioned central control system that is used for vehicle control, its host node is that the U5 of employing Fig. 2 is the MCU controller as system host node, and respectively by the photoelectricity insulation blocking, read the door inspection signal and the wiper position signalling of automobile, the alerting signal of vibration signal and vehicle detection inputs or outputs from other pin, and being connected with digital regulation resistance, Adjustment System is to the sensitivity level of vibration signal; Detect respectively, washing pump is controlled and exported by the input of control ignition signal for other pin, export fast and at a slow speed, the signal of function, wiper control group and the switches such as output, house dog and data preservation of steering indicating light is imported when reporting to the police by control for wiper; And this MCU links to each other with external crystal-controlled oscillation, as system's external clock; For not using port as later Extended Capabilities Port.
The above-mentioned central control system that is used for vehicle control, its pilothouse is to adopt the U1 conduct of Fig. 3 from node M CU control module from node, wherein PTD1 is as the Enable Pin of chip, all the other I/O mouths are as the input and output control end, and it is by control driving door lock and the pass car door lock of linking to each other with photoelectric isolating device; And with H bridge driving malfunction state-detection input end; Other pin is as the Enable Pin of U4 chip, the feedback signal terminal of motor drive current; This MCU also connects the input and output of external crystal-controlled oscillation control LIN; Do not use port as later Extended Capabilities Port; Motor drive module adopts H bridge circuit type of drive, by adding different logic levels at the input control end.
The above-mentioned central control system that is used for vehicle control, the U1 of its Fig. 4 is the MCU Main Processing Unit of passenger from node, wherein PTB1 is as the Enable Pin of chip, all the other I/O mouths are as the input and output control end, it also connects external crystal-controlled oscillation, other pin controlling and driving car door illuminating lamp, motor positive and inverse, driving door lock, pass car door lock; Do not use port as later Extended Capabilities Port, and the inner H bridge circuit type of drive that adopts of motor drive module, by adding different logic levels at the input control end, the control motor just changes, counter-rotating and stall; The car door illuminating lamp module and the output of gate control module that locks door, drives by the photoisolator control signal.
The above-mentioned central control system that is used for vehicle control, its wiper are to adopt the U1 of Fig. 5 as MCU Main Processing Unit from node M CU, and wherein PTB1 is as the Enable Pin of chip, and all the other I/O mouths are as the input and output control end; Should also be connected to external crystal-controlled oscillation from node, other pin as the output of car door illuminating lamp signal, windscreen wiper at the uniform velocity, geneva motion control; Do not use port as later Extended Capabilities Port.
This central control system adopts whole integrated, distributed control, adopts the LIN network to communicate between each node, is convenient to carry out the overall control of vehicle and the independent operation of realizing each position.Be convenient to realize the automatic control to vehicle, and safe and reliable, the electronic devices and components of employing are few, are convenient to install, and it is convenient to use, and use reliably, and it is also convenient to safeguard.Security, reliability and the simplicity of vehicle have been improved widely.
Description of drawings
Fig. 1 is the general diagram of one embodiment of the present invention;
Fig. 2 is the host node partial circuit figure of one embodiment of the present invention;
Fig. 3 is that the pilothouse of one embodiment of the present invention is from the node section circuit diagram;
Fig. 4 is that the passenger of one embodiment of the present invention is from the node section circuit diagram;
Fig. 5 is that the back windscreen wiper of one embodiment of the present invention is from the node section circuit diagram;
Fig. 6-1,6-2 are the circuit diagrams of independently reception of the invention process and telepilot transmitter module.
Embodiment
Below in conjunction with accompanying drawing and an embodiment, enforcement of the present invention is described in detail.
Be illustrated in figure 1 as total structured flowchart that the present invention realizes, among the figure, the core is that 8 single-chip microcomputers (also can adopt more powerful single-chip microcomputer according to the function needs, as 16), except finishing system house dog, body vibrations detection alarm, wiper combined switch signal input measuring ability, also as the host node of LIN communication; Pilothouse can be controlled lifting, car door lock and the car door lamp of four vehicle windows from node, and as LIN communication from node; The passenger can control the lifting of this vehicle window separately from node, and as LIN communication from node; Back windscreen wiper is from the topworks of node as the back windscreen wiper, mainly finish windscreen wiper action, and as LIN communication from node.Each task of LIN bus communication all is to initiate by host node, and it is the promoter of all LIN communications.Other is the reception executor of task from node.As shown in Figure 2, the formation of host node and act on as follows:
Power unit
Adopt U6, C65, D28, R89, R90, R91 to form the DC/DC converter, be the 12V/5V voltage transformation, and output dc voltage is stabilized in 5V ± 5%.DC voltage VB exports stable 5V DC voltage VCC after oppositely ending protection, TVS overvoltage protection, common mode filtering.
DC voltage VB exports stable 12V high-current supply VPW after oppositely ending protection, voltage clamp and noise filtering.
Main MCU control section
The U5 of Fig. 2 is the MCU controller of CK_LIN10 system host node, totally 48 pins.It has 5 general purpose I/O port PTA～PTE, totally 37 I/O pins.PTA2 imports as the learning key signal; The telepilot decoded signal that U15 will export from the J5 of Fig. 2 carries out signal shaping, and the PTA3 input MCU by U5 carries out the remote controller signal deciphering then; PTA5 reads the door inspection signal of automobile by after the insulation blocking of U9 photoelectricity; PTA6 reads the wiper position signalling by the insulation blocking of U12 photoelectricity, is used for controlling wiper and stops at initial position; PTA7 links to each other with R136, NPN triode Q7 among the U15, imports as vibration signal; PTB2 links to each other with the P1 pin of U12, exports as alerting signal; PTB3, PTB5, PTD7 link to each other with P1, P7, the P2 of U16 respectively, and to the control of digital regulation resistance U16, thereby Adjustment System is to the sensitivity level of vibration signal; PTB6 links to each other by PNP triode Q18, to the system reset of carrying out of RF receiver; Input detects PTB7 as ignition signal; PTC2 is as washing pump control output; PTC3, PTC4 control output fast and at a slow speed as wiper; The output of PTC5, PTC6 steering indicating light when reporting to the police; PTE4, PTD1, PTE5, PTD2, PTD3 link to each other with P1, P2, P3, P5, the P6 of U4 respectively, communicate by the SPI serial protocol, finish functions such as house dog and data preservation; PTD4, PTD5 are as the signal input of wiper control group and switch; PTE0～PTE2 links to each other with P4, P1, the P2 of U8 respectively, finishes the level conversion of LIN communication interface; PTE3 links to each other with the NPN triode Q6 of process R95, as the output of telepilot study pilot lamp; The P48 pin of U5 links to each other with external crystal-controlled oscillation X2, as system's external clock; Do not use port as later Extended Capabilities Port.
Watchdog module
U4, R2, R56, R6, C15 device by Fig. 2 are formed, and wherein U4 is the E of band watchdog function
2PROM.The id information of some status informations of vehicle (switch, lock a door, set up defences, report to the police), velocity information, telepilot, vibration sensitivity parameter etc. all are stored in this information-storing device.The PTE4 of U5, PTD1, PTE5, PTD2, PTD3 link to each other with P1, P2, P3, P5, the P6 of U4 respectively, functions such as corresponding realization sheet choosing, SPI communication and write-protect.
Body vibrations detection alarm module
The detection alarm part of forming vibration by Y2, U5, U12, U15, U16, Q11, Q12, the Q17 of Fig. 2.Detect external vibration signal by Y2 (piezoceramic transducer), carry out dividing potential drop (size of dividing potential drop is according to the non-volatile potentiometer decision in the digital regulation resistance), advanced U15 then and carry out the amplification of signal secondary reshaping, be input to U5 by U16.Judge according to the power of vibration signal whether vehicle is subjected to illegal invasion by U5.And by photoisolator U12, U12, Q11, Q12, Q17 send sound and light alarm.Wiper combined switch signal input detection module
Control wiper, totally five states: scrape fast water, at a slow speed scrape water, intermittently scrape water, scrape that water stops, the washing pump purge signal.
Following table is represented input state and corresponding logical relation:
| Input state | WL1IN | WL2IN |
| Washing pump cleans | 0 | 1 |
| Scraping water stops | 1 | 0 |
| Intermittently scrape | 1 | 1 |
| Scrape water at a slow speed | 0 | 1 |
| Scrape water fast | 0 | 0 |
J8, U5, U9, U10, Q10, Q19, Q20 by Fig. 2 form wiper combined switch signal input test section.WL1S, WL2S signal are exported WL1IN, WL2IN signal to U5 by photoisolator U9.U5 judges the control requirement of driver to wiper by detecting the logical relation of WL1IN and WL2IN.Produce WASO (washing pump output), RMO1 (scraping water fast), RMO2 (scraping water at a slow speed) signal then, produce WAS, RM1, RM2 signal through photoelectricity isolation, MOSFET driving and relay, drive the wiper motor and fast, at a slow speed, intermittently scrape actions such as water and washing pump water spray.
The LIN communication interface
Form by the U8 of Fig. 2 and R94, RL1, D13.The P1 pin of U8 links to each other with the PTE1 of U5 (serial communication SCI receiving end); the P4 pin links to each other with the PTE0 (serial communication SCI mouth transmitting terminal) of U5, and the P2 pin links to each other with the PTE2 of U5, as enabling control end; the P6 pin links to each other with power supply VPW by RL1, D13, draws protection on the realization communication level.RL1, D13 only, just need to add during as the LIN host node at MCU.
As shown in Figure 3, pilothouse is from the formation of node and act as:
Power unit
Adopt U12, R29, R33, R34, C49, the D8 of Fig. 3 to form the DC/DC transducer, be the 12V/5V voltage transformation, and output dc voltage is stabilized in 5V ± 5%.DC voltage VB exports stable 5V DC voltage VCC after oppositely ending protection, TVS overvoltage protection, common mode filtering.
DC voltage VB exports stable 12V DC voltage VPW after oppositely ending protection, TVS overvoltage protection and noise filtering.
The U10 of Fig. 3, L3, C7, C48 form mu balanced circuit, and the VAA power supply of output offers artificial circuit part and uses.
Pilothouse MCU control section
The U1 of Fig. 3 be the CK_LIN10 system from node M CU control module, totally 32 pins.It has 5 general purpose I/O port PTA～PTE, totally 24 I/O pins.Wherein PTD1 is as the Enable Pin of chip, and all the other I/O mouths are as the input and output control end.The PTA3 of U1 links to each other with Q8, K3 by photoelectric isolating device U9 and controls the driving door lock; PTA4 links to each other with Q9, K4 to control by photoelectric isolating device U9 and closes car door lock; PTA5 links to each other with the P2 pin of U4, as U4H bridge driving malfunction state-detection input end; PTA6 links to each other with the P20 pin of U4, as the Enable Pin of U4 chip; PTB0 links to each other with the P8 pin of U4, as the feedback signal terminal of motor drive current; PTB1～PTB2, PTB4～PTB7 are as 6 signal input parts, and PTB1 (DRKEYS) links to each other with the P6 pin of J4, detector switch car door lock input signal; PTB2 (RRS) links to each other with the P5 pin of J4, detects the lifting glass for vehicle window control input signals of right back door; PTB4 (CHILDS) links to each other with the P1 pin of J4, detects the input signal of children's door lock; PTB5 (LFS) links to each other with the P4 pin of J4, detects the lifting glass for vehicle window control input signals of left front door; PTB6 (LRS) links to each other with the P3 pin of J4, detects the lifting glass for vehicle window control input signals of left back door; PTB7 (RFS) links to each other with the P2 pin of J4, detects the lifting glass for vehicle window control input signals of right front door; PTC0, PTC1 link to each other with P3, the P19 pin of U4, by P6, P7, P14, the rotation of P15 foot control system motor of U4; PTC2 links to each other with U9, and U9 links to each other with Q2 and controls the car door illuminating lamp; PTC4 meets external crystal-controlled oscillation X1; PTE0～PTE1 links to each other with P1, the P4 pin of U3, the input and output of the P6 pin LIN of control U2; Do not use port as later Extended Capabilities Port.Motor drive module
The PTC0 of the U1 of Fig. 3, PTC1 link to each other with P3, the P19 pin of U4, by the logic level relation of control WIN1, WIN2, make P6, P7, the WM1 of P14, P15 pin generation 12V, the WM2 drive current control lifting glass for vehicle window motor of U4 do the rotating campaign.
The inner H bridge circuit type of drive that adopts of U4 by adding different logic levels at the input control end, just can control that motor just changes, counter-rotating and stall, and is as shown in the table.
Logic control relation:
| WIN1 | WIN2 | |
| 1 | 0 | Just change |
| 0 | 1 | Counter-rotating |
| 0 | 0 | Stall |
Left front door (cab door) switch can be controlled in lifting right front, left back by middle control unit (MCU) control, right back vehicle window, left front, right front, left back, right back car door respectively has independently direction switch may command lifting separately, as operating simultaneously, the former is than the latter's right of priority height; Weak point is pressed direction switch, and vehicle window rises automatically or descends, and to any operation of switch, the automatic lifting process is stopped in this process; Length is pressed direction switch, and vehicle window will move, and unclamp in case detect switch, with regard to stop motion; When setting up defences, shut glass for vehicle window automatically earlier, lock door again.
Car door illuminating lamp module
The PTC2 of the U1 of Fig. 3 links to each other with photoisolator U9, and U9 links to each other with P type MOSFET Q2.U1 exports LAMPO by PTC2, isolates through photoelectricity, and output signal LAMPC, this signal is by the illuminator of R25 driven MOS FET Q2 output LAMP signal controlling car door lamp.
The car door lock control module
The PTB1 of U1 links to each other with the P6 pin of J4, as the lock-switch input signal that locks door, realizes locking door and driving door by two approach then.
The PTA3 of U1 links to each other with photoisolator U9, and U9 links to each other with PNP triode Q8, relay K 3.U1 exports LOCO by PTA3, through optocoupler, and output signal LOCC, this signal is input to Q8 by R21, thereby drives relay K 3 adhesives, and control door lock motor just changes, and lock locks door.
The PTA4 of U1 links to each other with photoisolator U9, and U9 links to each other with PNP triode Q9, relay K 4.U1 exports UNLO by PTA4, through optocoupler, and output signal U NLC, this signal is input to Q9 by R22, thereby drives relay K 4 adhesives, the counter-rotating of control door lock motor, driving door lock.
The LIN communication interface
Form by U3 and RW1, R110, D2.The P1 pin of U3 links to each other with the PTE1 of U1 (serial communication SCI receiving end); the P4 pin links to each other with the PTE0 (serial communication SCI mouth transmitting terminal) of U1, and the P2 pin links to each other with the PTD1 of U1, as enabling control end; the P6 pin links to each other with VPW by R110, D2, draws protection on the realization communication level.The P6 pin of the P6 pin of P6 pin and the U8 of Fig. 2, the U2 of Fig. 4 links to each other.The ENL of P2 pin finishes the chip enable function.
As shown in Figure 4, the passenger is from the formation of node and act as:
Power unit
Adopt U10, R28, R29, R30, C35, the D8 of Fig. 4 to form the DC/DC transducer, be the 12V/5V voltage transformation, and output dc voltage is stabilized in 5V ± 5%.DC voltage VB exports stable 5V DC voltage VCC after oppositely ending protection, TVS overvoltage protection, common mode filtering.
DC voltage VB exports stable 12V DC voltage VPW after oppositely ending protection, TVS overvoltage protection and noise filtering.
Passenger MCU control section
The U1 of Fig. 4 is the MCU Main Processing Unit of CK_LIN10 system, totally 16 pins.It has 2 general purpose I/O port PTA～PTB, totally 14 I/O pins.Wherein PTB1 is as the Enable Pin of chip, and all the other I/O mouths are as the input and output control end.The PTA0 of U1 links to each other with the P8 pin of U3, as the detection feedback end of motor drive current; PTA1, PTB2 link to each other with P1, the P4 pin of U2, the input and output of the P6 pin LIN of control U2; PTA2, PTA3 link to each other with U5, U6, isolate the input that realizes the lifting glass for vehicle window control signal by photoelectricity and detect; PTA5 meets external crystal-controlled oscillation X2; PTB0 links to each other with the P2 pin of U3, as the H bridge fault condition detection input end of U3; PTB3 links to each other with the U7 photoelectric isolating device, and drives the car door illuminating lamp by Q2; PTB4, PTB5 link to each other with P3, the P19 pin of U3, by P6, P7, P14, the P15 pin output control motor positive and inverse of U3; PTB6 links to each other with U8, and U8 links to each other with Q8, K3 and controls the driving door lock; PTB7 links to each other with U9, and U9 links to each other with Q9, K4 to control and closes car door lock; Do not use port as later Extended Capabilities Port.
Motor drive module
RFS1, RFS2 switch input signal are converted to RFIN1, RFIN2 digital input signals by photoisolator.The U1 of Fig. 4 detects RFIN1, RFIN2 switching signal by PTA2, PTA3, thereby WIN1, the WIN2 logic level of control U3 by P6, P7, P14, P15 pin generation WM1, the WM2 drive current of U3, are controlled the rotating of motor, thereby realized the lifting of door and window.
The inner H bridge circuit type of drive that adopts of U3 by adding different logic levels at the input control end, just can control that motor just changes, counter-rotating and stall.As shown in the table:
Logic control relation:
| WIN1 | WIN2 | |
| 1 | 0 | Just change |
| 0 | 1 | Counter-rotating |
| 0 | 0 | Stall |
Right front, left back, right back car door respectively has independently direction switch may command lifting separately, and weak point is pressed direction switch, and vehicle window rises automatically or descends, and to any operation of switch, the automatic lifting process is stopped in this process; Length is pressed direction switch, and vehicle window will move, and unclamp in case detect switch, with regard to stop motion; When setting up defences, shut glass for vehicle window automatically earlier, lock door again.
Car door illuminating lamp module
The PTB3 of the U1 of Fig. 4 links to each other with photoisolator U7, U7 links to each other with P type MOSFET Q2, and U1 exports LAMPO by PTB3, isolates through photoelectricity, output signal LAMPC, this signal is by the illuminator of R26 driven MOS FET Q2 output LAMP signal controlling car door lamp.
The gate control module locks door, drives
The PTB6 of U1 links to each other with photoisolator U8, and U8 links to each other with PNP triode Q8, relay K 3.U1 exports LOCO by PTB6, through optocoupler, and output signal LOCC, this signal is input to Q8 by R97, thereby drives relay K 3 adhesives, and control door lock motor just changes, and lock locks door.
The PTB7 of U1 links to each other with photoisolator U9, and U9 links to each other with PNP triode Q9, relay K 4.U1 exports UNLO by PTB7, through optocoupler, and output signal U NLC, this signal is input to Q9 by R101, thereby drives relay K 4, adhesive, the counter-rotating of control door lock motor, driving door lock.
The LIN communication interface
Form by U2 and RW1.The P1 pin of U2 links to each other with the PTA1 of U1 (serial communication SCI receiving end), and the P4 pin links to each other with the PTB2 (serial communication SCI mouth transmitting terminal) of U1, and the P2 pin links to each other with the PTB1 of U1, and as enabling control end, the P6 pin of the P6 pin of P6 pin and the U8 of Fig. 2, the U3 of Fig. 3 links to each other.The ENL of P2 pin finishes the chip enable function.
As shown in Figure 5, wiper is from the formation of node (mainly being back rain strip device) and act as:
Power unit
Adopt U10, R28, R29, R30, C35, the D8 of Fig. 5 to form the DC/DC transducer, be the 12V/5V voltage transformation, and output dc voltage is stabilized in 5V ± 5%.DC voltage VB exports stable 5V DC voltage VCC after oppositely ending protection, TVS overvoltage protection, common mode filtering.
DC voltage VB exports stable 12V DC voltage VPW after oppositely ending protection, TVS overvoltage protection and noise filtering.
Wiper MCU control section
The U1 of Fig. 5 is a MCU Main Processing Unit, totally 16 pins.It has 2 general purpose I/O port PTA～PTB, totally 14 I/O pins.Wherein PTB1 is as the Enable Pin of chip, and all the other I/O mouths are as the input and output control end; The PTA1 of U1, PTB1, PTB2 link to each other with P1, P4, the P2 pin of U2 respectively, the input and output of the P6 pin LIN of control U2; PTA5 meets external crystal-controlled oscillation X2; PTB3 links to each other with U7, exports as car door illuminating lamp signal; PTB4, PTB5 link to each other with U5, U6 respectively, as windscreen wiper at the uniform velocity, geneva motion control; Do not use port as later Extended Capabilities Port.Manual manipulation wiper and automatic wiping system can be realized the control to the windscreen wiper state.
The LIN communication interface
U1 and RW1 by Fig. 5 form.The P1 pin of U1 links to each other with the PTA1 of U8 (serial communication SCI receiving end), and the PTB2 of P4 pin and U8 (serial communication SCI mouth transmitting terminal) mutually connects, and the P2 pin links to each other with the PTB3 of U8, is used as and enables control end, and the P6 pin links to each other with the P6 pin of the U8 of Fig. 2.The ENL of P2 pin finishes the chip enable function.
In addition, shown in Fig. 6-1,6-2, the present invention also can independently be provided with RF and receive and telepilot transmitter module part, and this part is in order to realize the remote control control to vehicle.
This part is a separate unit.The U1 of Fig. 6-1 is the RF receiving device, be responsible for receiving the radiofrequency signal of telepilot 433MHz, the ASK modulation is adopted in telepilot emission, applying rolling sign indicating number technology, finish jointly to vehicle set up defences/seek car (set antitheft/seek car), withdraw a garrison (removing antitheft), quiet (squelch anti-stealing), open the trunk function.
Claims (9)
1, a kind of central control system that is used for vehicle control, it comprises five parts, be respectively host node part, pilothouse from node section, passenger's (right front door, left back door, right back door) from node section, wiper from node section, rain sensor from node section; Wherein host node connect respectively rain sensor from node, pilothouse from node, back rain strip device from node and passenger from node, each is that operation independently is set from node, only be connected with host node, controlled by host node, the formation and the annexation of above-mentioned various piece are as follows:
Host node realizes that mainly house dog, body vibrations detection alarm carry out functions such as LIN communicates by letter with other from node; Include power supply, main MCU, watchdog module, vehicle detection alarm module and communication interface, main MCU is as central control unit, play leading control computing effect, it connects watchdog module, vehicle detection alarm module and communication interface respectively, power supply provides power for above-mentioned module and main MCU, communication interface is the LIN interface, and host node is to realize and other communication that is connected from node by LIN;
Pilothouse is mainly realized motor-driven (being the electronic window lifting of controlling), car door illuminating lamp, car door lock control, the action of passing through other three vehicle windows of the total line traffic control of LIN and door lock and LIN communication function etc. from node; It includes pilothouse MCU, motor drive module, car door lighting module, car door lock module and communication interface, pilothouse MCU is the central processing unit of this node section, it connects motor drive module, car door lighting module, car door lock module respectively, and be connected with host node by communication interface, the communication of maintenance and host node, its communication interface is the LIN interface;
The passenger is from node, main motor-driven (being the electronic window lifting of controlling), car door illuminating lamp, car door lock control and the LIN communication function etc. realized, it includes passenger MCU, motor drive module, car door lighting module, car door lock car door die sinking piece and communication interface, passenger MCU is the central processing unit of this node section, it connects motor drive module, car door lighting module, car door lock car door die sinking piece respectively, and be connected with host node by communication interface, the communication of maintenance and host node, its communication interface is the LIN interface;
Wiper is from node, and windscreen wiper receives the windscreen wiper speed control signal of host node from node section; Rain sensor realizes the rainfall information that collects is sent to by the LIN bus function of host node from node; It includes windscreen wiper MCU and communication interface, and windscreen wiper MCU carries out communication by this communication interface and host node, and this communication interface is the LIN interface.
2, the central control system that is used for vehicle control as claimed in claim 1 is characterised in that it adopts host node as master control system, and with LIN to each from the node communication.
3, the central control system that is used for vehicle control as claimed in claim 1 is characterised in that the host node part also is provided with the wiper signal detection module, detects the combined switch signal input of wiper.
4, the central control system that is used for vehicle control as claimed in claim 1 is characterised in that above-mentionedly from node, also is respectively arranged with independently power supply, and to provide power to various piece, power supply mainly is connected on the MCU of various piece.
5, the central control system that is used for vehicle control as claimed in claim 1 is characterised in that its host node also is connected with independent reception and the telepilot part that is provided with, and is used to receive wireless control signal, and according to instructing to host node transmission signals, executable operations.
6, the central control system that is used for vehicle control as claimed in claim 1, be characterised in that its host node is that employing U5 is the MCU controller as system host node, and respectively by the photoelectricity insulation blocking, read the door inspection signal and the wiper position signalling of automobile, the alerting signal of vibration signal and vehicle detection inputs or outputs from other pin, and being connected with digital regulation resistance, Adjustment System is to the sensitivity level of vibration signal; Detect respectively, washing pump is controlled and exported by the input of control ignition signal for other pin, export fast and at a slow speed, the signal of function, wiper control group and the switches such as output, house dog and data preservation of steering indicating light is imported when reporting to the police by control for wiper; And this MCU links to each other with external crystal-controlled oscillation, as system's external clock; For not using port as later Extended Capabilities Port.
7, the central control system that is used for vehicle control as claimed in claim 1, be characterised in that its pilothouse is to adopt the U1 conduct from node M CU control module from node, wherein PTD1 is as the Enable Pin of chip, all the other I/O mouths are as the input and output control end, and it is by control driving door lock and the pass car door lock of linking to each other with photoelectric isolating device; And with H bridge driving malfunction state-detection input end; Other pin is as the Enable Pin of U4 chip, the feedback signal terminal of motor drive current; This MCU also connects the input and output of external crystal-controlled oscillation control LIN; Do not use port as later Extended Capabilities Port; Motor drive module adopts H bridge circuit type of drive, by adding different logic levels at the input control end.
8, the central control system that is used for vehicle control as claimed in claim 1, be characterised in that its U1 is the MCU Main Processing Unit of passenger from node, wherein PTB1 is as the Enable Pin of chip, all the other I/O mouths are as the input and output control end, it also connects external crystal-controlled oscillation, other pin controlling and driving car door illuminating lamp, motor positive and inverse, driving door lock, pass car door lock; Do not use port as later Extended Capabilities Port, and the inner H bridge circuit type of drive that adopts of motor drive module, by adding different logic levels at the input control end, the control motor just changes, counter-rotating and stall; The car door illuminating lamp module and the output of gate control module that locks door, drives by the photoisolator control signal.
9, the central control system that is used for vehicle control as claimed in claim 1 is characterised in that its wiper is to adopt U1 as MCU Main Processing Unit from node M CU, and wherein PTB1 is as the Enable Pin of chip, and all the other I/O mouths are as the input and output control end; Should also be connected to external crystal-controlled oscillation from node, other pin as the output of car door illuminating lamp signal, windscreen wiper at the uniform velocity, geneva motion control; Do not use port as later Extended Capabilities Port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100365406A CN1912784A (en) | 2005-08-09 | 2005-08-09 | Central control system for vehicle control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100365406A CN1912784A (en) | 2005-08-09 | 2005-08-09 | Central control system for vehicle control |
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| Publication Number | Publication Date |
|---|---|
| CN1912784A true CN1912784A (en) | 2007-02-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005100365406A Pending CN1912784A (en) | 2005-08-09 | 2005-08-09 | Central control system for vehicle control |
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| Country | Link |
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| CN (1) | CN1912784A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907078A (en) * | 2017-01-17 | 2017-06-30 | 秦芳 | Automotive window lowering or hoisting gear |
| CN107168336A (en) * | 2017-06-29 | 2017-09-15 | 深圳力子机器人有限公司 | A kind of control system of AGV dollies |
-
2005
- 2005-08-09 CN CNA2005100365406A patent/CN1912784A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106907078A (en) * | 2017-01-17 | 2017-06-30 | 秦芳 | Automotive window lowering or hoisting gear |
| CN106907078B (en) * | 2017-01-17 | 2018-02-09 | 浙江易网科技股份有限公司 | A kind of smart city intelligent transportation guides system |
| CN107701016A (en) * | 2017-01-17 | 2018-02-16 | 秦芳 | Automotive window lowering or hoisting gear |
| CN107168336A (en) * | 2017-06-29 | 2017-09-15 | 深圳力子机器人有限公司 | A kind of control system of AGV dollies |
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