CN203941442U - The central body control system of compatible active safety system - Google Patents
The central body control system of compatible active safety system Download PDFInfo
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- CN203941442U CN203941442U CN201420394035.3U CN201420394035U CN203941442U CN 203941442 U CN203941442 U CN 203941442U CN 201420394035 U CN201420394035 U CN 201420394035U CN 203941442 U CN203941442 U CN 203941442U
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Abstract
The central body control system that the utility model discloses a kind of compatible active safety system, comprises central vehicle body control unit, body control system and safety control system; Body control system is the vehicle body electric-control system such as wheel box ECU, anti-skid braking system ECU, Engine ECU being connected with central vehicle body control unit signal; Described safety control system comprises ADAS system, front-end module and rear module; Described ADAS system, front-end module and rear module are connected with central vehicle body control unit signal respectively; Between described wheel box ECU, anti-skid braking system ECU, Engine ECU, lighting system, windscreen wiper spray, electric switch, other electrical equipment, remote access control system, onboard diagnostic system, sensor group, combined switch, combination instrument, other body electric systems and other vehicle body switching value output modules and ADAS system, front-end module and rear module, carry out information interaction by central vehicle body control unit.
Description
Technical field
The utility model relates to a kind of field of automobile control, is a kind of central car body controller of compatible active safety system specifically.
Background technology
Automobile is a kind of very important short distance traffic instrument, and it is simple in structure, cheap for manufacturing cost, worldwide comes into vogue since just being risen by utility model; And along with the develop rapidly of computer technology, network communications technology, integrated circuit technique, due to the performance requirement of each side, impel increasing electronic-controlled installation is set on the automobile of pure physical construction, and along with the increase of electronic-controlled installation quantity, the line between each electronic-controlled installation also becomes increasingly complex; Accordingly, the connection mode of this complexity not only brings the increase of wire harness cost, and has increased malfunctioning node, and the reliability of car load has been reduced on the contrary.
CAN (Controller Area Network) is the controller local area network agreement of being researched and developed for Vehicle Electronic Control specially in early eighties by one of maximum in the world automobile component part supply business's German BOSCH company, is now used and orientate as international standard by the well-known automaker in numerous worlds.The appearance of CAN makes taking central vehicle body control unit as control core, distributed real-time control network taking CAN bus as network arises at the historic moment, thereby having simplified loaded down with trivial details wire harness on automobile connects, strengthen the reliability and stability of electronic-controlled installation, made automotive electronics to comfortableization, superior, hommization future development.
And along with the development of CAN, when present automobile dispatches from the factory, corresponding central vehicle body control unit often all can be installed and (connect other power on automobile by CAN bus as the body control system of automobile, the systems such as instrument, realize the intellectuality control of car load), but existing central vehicle body control unit adds in the control of CAN mode bus, central authorities' vehicle body control unit only can pass through the respective performances of CAN monitoring bus automobile itself, only reduce wire harness cost by the connected mode of CAN bus, reduce the probability that automobile itself breaks down, but at driving secure context, owing to lacking active safety measure, do not increase corresponding safety coefficient.And more existing external security warning systems, as radar for backing car, traffic navigation etc., all the body control system with dispatching from the factory when is separated, cannot be directly compatible, and, cross when near when there is the unconscious deviation of vehicle and spacing, can only give the driver of this vehicle the early warning of sounding, cannot inform the vehicle that other normally travel.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of central car body controller of compatible active safety system.
In order to solve the problems of the technologies described above, the utility model provides a kind of central body control system of compatible active safety system, comprises central vehicle body control unit, body control system and safety control system; Described body control system is between central vehicle body control unit and wheel box ECU, anti-skid braking system ECU, Engine ECU, lighting system, windscreen wiper spray, electric switch, other electrical equipment, remote access control system, onboard diagnostic system, sensor group, combined switch, combination instrument, other body electric systems and other vehicle body switching value output modules, to form signal to be connected rear formation; Described safety control system comprises ADAS system, front-end module and rear module; Described ADAS system, front-end module and rear module are connected with central vehicle body control unit signal respectively; Between described wheel box ECU, anti-skid braking system ECU, Engine ECU, lighting system, windscreen wiper spray, electric switch, other electrical equipment, remote access control system, onboard diagnostic system, sensor group, combined switch, combination instrument, other body electric systems and other vehicle body switching value output modules and ADAS system, front-end module and rear module, carry out information interaction by central vehicle body control unit.
Improvement as the central body control system to compatible active safety system described in the utility model: described central vehicle body control unit is 32 central Body Control MCU; The reserved analog quantity acquisition circuit of described central Body Control MCU is connected with cooling-water temperature sensor, baroceptor in sensor group; Described analog quantity acquisition circuit comprises resistance R 5, R6, R7, R9, R13, R14, R15, R19, capacitor C 7, C8, C11, C12, diode D2, D4, bilateral diode Q2, Q4; The AD6 of the described capacitor C 8 one Body Control MCU of termination central authorities gathers port and resistance R 7 one end, capacitor C 8 other end ground connection; One end of the port 3 of resistance R 7 another termination bilateral diode Q2 and resistance R 6, R9; The another port common ground of the port one of bilateral diode Q2 and resistance R 9; Connect+5V of port 2 output port of bilateral diode Q2; Resistance R 6 another port connect one end of sensor signal lines and resistance R 5, capacitor C 7; The negative pole of resistance R 5 another terminating diode D2; The positive pole of diode D2 connects the power end of vehicle body voltage collection circuit; The other end ground connection of capacitor C 7; AD7 port and resistance R 15 one end of the described capacitor C 12 1 Body Control MCU of termination central authorities, capacitor C 12 other end ground connection; Resistance R 15 ports 3 of another termination bilateral diode Q4 and one end of resistance R 14,19; The another port common ground of the port one of bilateral diode Q4 and resistance R 19; Connect+5V of port 2 output port of bilateral diode Q4; Resistance R 14 another port connect sensor signal lines and resistance R 13, capacitor C 11 one end; The negative pole of resistance R 13 another terminating diode D4; The positive pole of diode D4 connects the power end of voltage collection circuit; The other end ground connection of capacitor C 11.
Further improvement as the central body control system to compatible active safety system described in the utility model: be connected by CAN bus circuit between described central vehicle body control unit and combination instrument, OBD onboard diagnostic system, power assembly, car load electrical apparatus control system, ADAS system, front-end module, rear module; Described CAN bus circuit comprises CAN physical chip U1, resistance R 40, R41, R42, R43, capacitor C 37, C24, esd protection diode Q10, CAN traffic filter B1; Port 2 ground connection of described CAN physical chip U1, connect+5V of port 3 power supply, port 8 connects the control pin of central Body Control MCU and one end of resistance R 43, the other end ground connection of resistance R 43 for model selection port; The port one of chip U1 is the output terminal of CAN0_TX, the input end that the port 4 of chip U1 is CAN0_RX; The port 6 connecting resistance R40 of chip U1, the port 7 connecting resistance R42 of chip U1, the port 5 of chip U1 is unsettled; The port 4 of another termination CAN traffic filter B1 of described resistance R 40; The port 3 of another termination CAN traffic filter B1 of resistance R 42; The port one connecting resistance R41 of CAN traffic filter B1 and one end of capacitor C 37, the other end ground connection of capacitor C 37; The other end of port 2 connecting resistance R41 of CAN traffic filter B1 and one end of capacitor C 24; The other end ground connection of capacitor C 24; The port one of CAN traffic filter B1 connects the port one of esd protection diode Q10, and the port 2 of CAN traffic filter B1 connects the port 2 of esd protection diode Q10; Port 3 ground connection of esd protection diode Q10.
Further improvement as the central body control system to compatible active safety system described in the utility model: be connected by LIN bus circuit between the sensor such as room temperature and smog in described central vehicle body control unit and combined switch, sensor, RKE gate module; Described LIN bus circuit comprises physical chip U8, resistance R 76, R71, R72, R75, R78, capacitor C 70, C71, diode D10; The port one of described chip U8 is signal receiving end, by the MCU end that is connected to central vehicle body control unit of pull-up resistor R71, the port 2 of chip U8 is the control pin of the Body Control MCU of pattern control termination central authorities, one end of port 3 contact resistance R76 of U8 and one end of capacitor C 70, the port 4 of U8 is connected by the signal output part of the LIN1_TX of pull-up resistor R72 and central Body Control MCU for signal sending end, and the port 5 of U8 is earth terminal; The port 6 of U8 is connected to outside LIN bus by R78, and process C71 filtering, and on R75, D10, comes the port 8 of U8.
Further improvement as the central body control system to compatible active safety system described in the utility model: the reserved pulse acquisition circuit of described central vehicle body control unit can pick-up transducers group in vehicle speed sensor or signals of rotational speed sensor, described pulse acquisition circuit comprises LM2903 voltage comparator U19-1, U19-2, diode D24, D25, D26, D27, capacitor C 140, C143, C146, C147, C148, C149, C150, C155, resistance R 120, R121, R126, R128, R129, R141, R142, R143, R144, R145, R151, R152, R158, R159, described pulse acquisition circuit 0 syndeton is as follows: diode D24 negative pole connects one end of the speed of a motor vehicle or speed probe input end and capacitor C 143, one end of anodal contact resistance R120, R128, the other end of capacitor C 143 connects ground, one end of other end contact resistance R121, the R126 of resistance R 120 and+5V output port, one end of other end contact resistance R129 of resistance R 128 and the negative pole of diode D25, the positive pole of diode D25 connects ground, the other end of resistance R 129 connects one end of capacitor C 140 and the port 2 of LM2903 voltage comparator U19-1, the other end of capacitor C 140 connects ground, the other end of port 3 contact resistance R121 of LM2903 voltage comparator U19-1 and one end of resistance R 141, the port 3 of LM2903 voltage comparator U19-1 is gone back one end of contact resistance R142 and one end of capacitor C 147 simultaneously, the port 4 of LM2903 voltage comparator U19-1 connects ground, connect+5V of port 8 output port of LM2903 voltage comparator U19-1, the other end of port one contact resistance R126 of LM2903 voltage comparator U19-1 and one end of capacitor C 146, the port one of LM2903 voltage comparator U19-1 is gone back the other end of contact resistance R142 and the other end of capacitor C 147 simultaneously, the other end of capacitor C 146 connects ground, the pulse capture pin of the vehicle body control unit MCU of central authorities connects the port one of LM2903 voltage comparator U19-1, described pulse acquisition circuit 1 syndeton is as follows: diode D26 negative pole connects one end of the speed of a motor vehicle or speed probe input end and capacitor C 148, one end of anodal contact resistance R143, R151, the other end of capacitor C 148 connects ground, one end of other end contact resistance R144, the R145 of resistance R 143 and+5V output port, one end of other end contact resistance R152 of resistance R 151 and the negative pole of diode D27, the positive pole of diode D27 connects ground, the other end of resistance R 152 connects one end of capacitor C 149 and the port 6 of LM2903 voltage comparator U19-2, the other end of capacitor C 149 connects ground, the other end of port 5 contact resistance R144 of LM2903 voltage comparator U19-2 and one end of resistance R 158, the port 5 of LM2903 voltage comparator U19-2 is gone back one end of contact resistance R159 and one end of capacitor C 155 simultaneously, the other end of port 7 contact resistance R145 of LM2903 voltage comparator U19-2 and one end of capacitor C 150, the port 7 of LM2903 voltage comparator U19-2 is gone back the other end of contact resistance R159 and the other end of capacitor C 155 simultaneously, the port 9 of LM2903 voltage comparator U19-2 connects ground, connect+5V of port one 0 output port of LM2903 voltage comparator U19-2, the other end of capacitor C 150 connects ground, the pulse capture pin of the vehicle body control unit MCU of central authorities connects the port 7 of LM2903 voltage comparator U19-2.
Further improvement as the central body control system to compatible active safety system described in the utility model: be connected by power output circuit between described central vehicle body control unit and car load electrical equipment, described power output circuit comprises BTS723 chip U21, diode D31, D32, D33, resistance R 253, R254, R255, the port one of BTS723 chip U21, 7, 8, 14 connect outside power power-supply, the port 2 of BTS723 chip U21 is received the control end of central Body Control MCU by pull down resistor R253, the port 3 of BTS723 chip U21 is indicated port for power chip duty and is connected to the collection pin of central Body Control MCU, the port 4 of BTS723 chip U21 is by resistance R 254 and diode D31 and be connected to ground, the port 5 of BTS723 chip U21 is indicated port for power chip duty and is connected to the collection pin of central Body Control MCU, the port 6 of BTS723 chip U21 is received the control end of central Body Control MCU by pull down resistor R255, the port 9 of BTS723 chip U21 and port one 0 are that metal-oxide-semiconductor power stage port passes through parallel diode D33 over the ground, connect+5V of the port one 1 Voltage-output port of BTS723 chip U21, the port one 2 of BTS723 chip U21 and port one 0 are metal-oxide-semiconductor power stage port.
Further improvement as the central body control system to compatible active safety system described in the utility model: described central vehicle body control unit gathers vehicle body switching value by switch quantity acquisition circuit; Described switch quantity acquisition circuit comprises that polarity free capacitor C162, C163 and resistance R 168, R169, R176, R177, R185, R186, R187 form; One end of one end connection external switch amount signal input part of described capacitor C 162 and resistance R 168, R169, R176, R185, R186, the other end of capacitor C 162 connects ground; The other end of resistance R 168 connects the other end of power end and resistance R 169; The other end of resistance R 185 connects ground; The other end of resistance R 186 connects ground; The other end contact resistance R187 of resistance R 176, one end of R177; The other end of resistance R 187 connects ground; The other end of resistance R 177 connects the collection pin of central Body Control MCU and one end of capacitor C 163; The other end of capacitor C 163 connects ground.
Further improvement as the central body control system to compatible active safety system described in the utility model: described electric capacity is polarity free capacitor; Bilateral diode Q2 and bilateral diode Q4 are BAV99 bilateral diode; Described central Body Control MCU is MPC560X B chip; Described CAN physical chip U1 is TJA1050T chip.
The purpose of this utility model is to solve the deficiency that lacks active safety system in existing central vehicle body control unit.On the basis of traditional central car sound control module, add the function of compatible active safety system.Install active safety system additional on the vehicle of central car body control module that compatible active safety system is housed after, just can receive the deviation event that active safety system sends, cross nearly event etc. with preceding vehicle spacing.
Central authorities' car body controller is receiving after variety of event, can send the load of steering order control body electronics as brake lamp according to program setting in advance, and steering indicating light work, and does not need artificial intervention.So just can cross when nearly event occurs and send early warning information to other vehicle automatically at deviation, spacing, and do not need artificial operation, prevention and reduce various vehicles in road driving because of driver's fatigue driving, divert attention, desert, deviation that the various emergency situations such as Getting Started cause, knock into the back, the traffic hazard such as collision, and helping human pilot to form a good driving habits, security civilization is driven.
In central vehicle body control unit, access active safety system, can provide strong guarantee for driving safety and road safety, the generation of effectively minimizing accident, not only can make car steering person receive the early warning of danger signal, also can be by the information interaction between active safety system and central vehicle body control unit, and send corresponding early warning signal by the associated electrical appliance equipment of central vehicle body control unit control vehicle body for the driver of the pedestrian outside car or other vehicles, the utility model passes through analog quantity acquisition circuit, CAN bus circuit, LIN bus circuit, pulse acquisition circuit, the setting of power output circuit and switch quantity acquisition circuit etc., make the body control system of vehicle body carry out compatibility by central vehicle body control unit and safety control system, and, by this compatibility, make in the process of Vehicle Driving Cycle, realize the independent early warning of accident to driver, also realize the early warning of accident to the other side driver or pedestrian, as the pedestrian impact early warning (PCW) under daytime, front shock early warning (FCW), lane departur warning (LDW), spacing monitoring and warning (HMW), intelligence high beam (ICH), the early warning such as Traffic Sign Recognition (TSR), can realize accurate early warning by this dual early warning form, avoid greatly the generation of accident.
The program moved between body control system used in the present invention and active safety system is for being used in prior art, analog quantity acquisition circuit of the present utility model, CAN bus circuit, LIN bus circuit, pulse acquisition circuit, power output circuit and switch quantity acquisition circuit arrange based on existing body control system and active safety system working procedure, do not needing to change on the basis of the software program that body control system and active safety system use, just realize compatiblely, saved the manufacturing cost in existing automobile manufacturing process.
Brief description of the drawings
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Fig. 1 is modular construction schematic diagram of the present utility model;
Fig. 2 is analog quantity acquisition circuit schematic diagram of the present utility model;
Fig. 3 is CAN bus circuit schematic diagram of the present utility model;
Fig. 4 is LIN bus circuit schematic diagram of the present utility model;
Fig. 5 is pulse acquisition circuit of the present utility model () schematic diagram;
Fig. 6 is pulse acquisition circuit of the present utility model (two) schematic diagram;
Fig. 7 is power output circuit schematic diagram of the present utility model;
Fig. 8 is switch quantity acquisition circuit schematic diagram of the present utility model.
Embodiment
Embodiment 1, Fig. 1～Fig. 8 have provided a kind of central body control system of compatible active safety system, comprise central vehicle body control unit 1, body control system and safety control system.
Body control system is between central vehicle body control unit 1 and wheel box ECU81, anti-skid braking system ECU82, Engine ECU 83, lighting system, windscreen wiper spray 72, electric switch 73, other electrical equipment 74, remote access control system 5, onboard diagnostic system 6, sensor group 4, combined switch 3, combination instrument 2, other body electric systems and other vehicle body switching value output modules, to form signal to be connected rear formation; Signal annexation described in body control system is existing technology, but sort signal connection line of the prior art is often comparatively complicated; Above-described safety control system comprises ADAS system 9, the front-end module 10 (safety equipment of major control vehicle front, as steering indicating light of vehicle front etc.) and rear module 11 (safety equipment at major control automobile rear, as the steering indicating light at automobile rear etc.); ADAS system 9, front-end module 10 and rear module 11 are connected with central vehicle body control unit 1 signal respectively.Between wheel box ECU81, anti-skid braking system ECU82, Engine ECU 83, lighting system, windscreen wiper spray 72, electric switch 73, other electrical equipment 74, remote access control system 5, onboard diagnostic system 6, sensor group 4, combined switch 3, combination instrument 2, other body electric systems and other vehicle body switching value output modules and ADAS system 9, front-end module 10 and rear module 11, carry out information interaction by central vehicle body control unit 1.
The technical matters that the utility model mainly solves is the defect that needs two cover control programs to control respectively ADAS system in prior art 9 and central vehicle body control unit 1, realize and carry out consumer control all in vehicle body by central vehicle body control unit 1, reduce the manufacturing cost in automobile production.
In the utility model, central vehicle body control unit 1 is connected by the signal between analog quantity acquisition circuit, CAN bus circuit, LIN bus circuit, pulse acquisition circuit, power output circuit and switch quantity acquisition circuit realization and body control system and safety control system respectively.The central vehicle body control unit 1 using in the present embodiment is the Qorivva MPC560X B series 32-bit microprocessor of Freescale based on Power Architecture technological development, there is the flash flash memory up to 1.5MB, EEPROM on 64KB sheet, up to the RAM of 96KB, and there are 6 road CAN, 4 road LIN, meet the utility model completely by body control system and safety control system and the compatible demand of central vehicle body control unit 1, and realize that the data of simultaneously carrying out body control system and safety control system by central vehicle body control unit 1 read etc., realize the automatic linkage function between body control system and safety control system.
Specific implementation structure of the present utility model following (the central Body Control MCU of central vehicle body control unit 1):
The reserved analog quantity acquisition circuit of the Body Control MCU of central authorities is connected with cooling-water temperature sensor, baroceptor in sensor group 4; Analog quantity acquisition circuit comprises resistance R 5, R6, R7, R9, R13, R14, R15, R19, capacitor C 7, C8, C11, C12, diode D2, D4, bilateral diode Q2, Q4; The AD6 of the capacitor C 8 one Body Control MCU of termination central authorities gathers port and resistance R 7 one end, capacitor C 8 other end ground connection; One end of the port 3 of resistance R 7 another termination bilateral diode Q2 and resistance R 6, R9; The another port common ground of the port one of bilateral diode Q2 and resistance R 9; Connect+5V of port 2 output port of bilateral diode Q2; Resistance R 6 another port connect one end of sensor signal lines (AD_IN6) and resistance R 5, capacitor C 7; The negative pole of resistance R 5 another terminating diode D2; The positive pole of diode D2 connects the power end (power end of the voltage collection circuit in vehicle body) of voltage collection circuit; The other end ground connection of capacitor C 7; AD7 port and resistance R 15 one end of the capacitor C 12 1 Body Control MCU of termination central authorities, capacitor C 12 other end ground connection; Resistance R 15 ports 3 of another termination bilateral diode Q4 and one end of resistance R 14,19; The another port common ground of the port one of bilateral diode Q4 and resistance R 19; Connect+5V of port 2 output port of bilateral diode Q4; Resistance R 14 another port connect sensor signal lines (AD_IN7) and resistance R 13, capacitor C 11 one end; The negative pole of resistance R 13 another terminating diode D4; The positive pole of diode D4 connects the power end of voltage collection circuit; The other end ground connection of capacitor C 11.
Between central authorities' vehicle body control unit 1 and combination instrument 2, OBD onboard diagnostic system 6, power assembly 8, car load electrical apparatus control system 7, ADAS system 9, front-end module 10, rear module 11, be connected by CAN bus circuit; CAN bus circuit comprises CAN physical chip U1 (TJA1050T), resistance R 40, R41, R42, R43, capacitor C 37, C24, esd protection diode Q10, CAN traffic filter B1; Port 2 ground connection of CAN physical chip U1, connect+5V of port 3 power supply, port 8 connects the control pin of central Body Control MCU and one end of resistance R 43, the other end ground connection of resistance R 43 for model selection port; The port one of chip U1 is the output terminal of CAN0_TX, the input end that the port 4 of chip U1 is CAN0_RX; The port 6 connecting resistance R40 of chip U1, the port 7 connecting resistance R42 of chip U1, the port 5 of chip U1 is unsettled; The port 4 of another termination CAN traffic filter B1 of resistance R 40; The port 3 of another termination CAN traffic filter B1 of resistance R 42; The port one connecting resistance R41 of CAN traffic filter B1 and one end of capacitor C 37, the other end ground connection of capacitor C 37; The other end of port 2 connecting resistance R41 of CAN traffic filter B1 and one end of capacitor C 24; The other end ground connection of capacitor C 24; The port one of CAN traffic filter B1 connects the port one of esd protection diode Q10, and the port 2 of CAN traffic filter B1 connects the port 2 of esd protection diode Q10; Port 3 ground connection of esd protection diode Q10.
Between the sensor such as room temperature and smog in central authorities vehicle body control unit 1 and combined switch 3, sensor 4, RKE gate module 5, be connected by LIN bus circuit; LIN bus circuit comprises physical chip U8 (TJA1021), resistance R 76, R71, R72, R75, R78, capacitor C 70, C71, diode D10; The port one of chip U8 is signal receiving end, by the central vehicle body control unit MCU end of being connected to of pull-up resistor R71, the port 2 of chip U8 is the control pin of the Body Control MCU of pattern control termination central authorities, one end of port 3 contact resistance R76 of chip U8 and one end of capacitor C 70, the port 4 of U8 is connected by the signal output part of the LIN1_TX of pull-up resistor R72 and central Body Control MCU for signal sending end, and the port 5 of U8 is earth terminal; The port 6 of U8 is connected to outside LIN bus (being connected with the sensor such as room temperature and smog, RKE gate module 5 etc. in combined switch 3, sensor 4) by R78, and process C71 filtering, and on R75, D10, moves the port 8 of U8 to.
The reserved pulse acquisition circuit of central authorities' vehicle body control unit 1 can pick-up transducers group 4 in vehicle speed sensor or signals of rotational speed sensor, pulse acquisition circuit comprises LM2903 voltage comparator U19-1, U19-2, diode D24, D25, D26, D27, capacitor C 140, C143, C146, C147, C148, C149, C150, C155, resistance R 120, R121, R126, R128, R129, R141, R142, R143, R144, R145, R151, R152, R158, R159, described pulse acquisition circuit 0 syndeton is as follows: diode D24 negative pole connects one end of the speed of a motor vehicle or speed probe input end (SW_IN1) and capacitor C 143, one end of anodal contact resistance R120, R128, the other end of capacitor C 143 connects ground, one end of other end contact resistance R121, the R126 of resistance R 120 and+5V output port, one end of other end contact resistance R129 of resistance R 128 and the negative pole of diode D25, the positive pole of diode D25 connects ground, the other end of resistance R 129 connects one end of capacitor C 140 and the port 2 of LM2903 voltage comparator U19-1, the other end of capacitor C 140 connects ground, the other end of port 3 contact resistance R121 of LM2903 voltage comparator U19-1 and one end of resistance R 141, the port 3 of LM2903 voltage comparator U19-1 is gone back one end of contact resistance R142 and one end of capacitor C 147 simultaneously, the port 4 of LM2903 voltage comparator U19-1 connects ground, connect+5V of port 8 output port of LM2903 voltage comparator U19-1, the other end of port one contact resistance R126 of LM2903 voltage comparator U19-1 and one end of capacitor C 146, the port one of LM2903 voltage comparator U19-1 is gone back the other end of contact resistance R142 and the other end of capacitor C 147 simultaneously, the other end of capacitor C 146 connects ground, the pulse capture pin of the vehicle body control unit MCU of central authorities connects the port one of LM2903 voltage comparator U19-1, described pulse acquisition circuit 1 syndeton is as follows: diode D26 negative pole connects one end of the speed of a motor vehicle or speed probe input end (SW_IN0) and capacitor C 148, one end of anodal contact resistance R143, R151, the other end of capacitor C 148 connects ground, one end of other end contact resistance R144, the R145 of resistance R 143 and+5V output port, one end of other end contact resistance R152 of resistance R 151 and the negative pole of diode D27, the positive pole of diode D27 connects ground, the other end of resistance R 152 connects one end of capacitor C 149 and the port 6 of LM2903 voltage comparator U19-2, the other end of capacitor C 149 connects ground, the other end of port 5 contact resistance R144 of LM2903 voltage comparator U19-2 and one end of resistance R 158, the port 5 of LM2903 voltage comparator U19-2 is gone back one end of contact resistance R159 and one end of capacitor C 155 simultaneously, the other end of port 7 contact resistance R145 of LM2903 voltage comparator U19-2 and one end of capacitor C 150, the port 7 of LM2903 voltage comparator U19-2 is gone back the other end of contact resistance R159 and the other end of capacitor C 155 simultaneously, the port 9 of LM2903 voltage comparator U19-2 connects ground, connect+5V of port one 0 output port of LM2903 voltage comparator U19-2, the other end of capacitor C 150 connects ground, the pulse capture pin of the vehicle body control unit MCU of central authorities connects the port 7 of LM2903 voltage comparator U19-2.
Between central authorities' vehicle body control unit 1 and car load electrical equipment, be connected by power output circuit, power output circuit comprises BTS723 chip U21, diode D31, D32, D33, resistance R 253, R254, R255, the port one of BTS723 chip U21, 7, 8, 14 connect outside power power-supply (BAT_POWER), the port 2 of BTS723 chip U21 is received the control end SW_OUTCTR2 of central Body Control MCU by pull down resistor R253, the port 3 of BTS723 chip U21 is indicated port for power chip duty and is connected to the collection pin of central Body Control MCU, the port 4 of BTS723 chip U21 is by resistance R 254 and diode D31 and be connected to ground, play the effect of power supply reverse connecting protection, the port 5 of BTS723 chip U21 is indicated port for power chip duty and is connected to the collection pin of central Body Control MCU, the port 6 of BTS723 chip U21 is received the control end SW_OUTCTR2 of central Body Control MCU by pull down resistor R255, the port 9 of BTS723 chip U21 and port one 0 can play to inductive load the effect of afterflow for metal-oxide-semiconductor power stage port by parallel diode D33 over the ground, connect+5V of the port one 1 Voltage-output port of BTS723 chip U21, the port one 2 of BTS723 chip U21 and port one 0 can play to inductive load the effect of afterflow for metal-oxide-semiconductor power stage port by D33 in parallel over the ground.
Central authorities' vehicle body control unit 1 gathers vehicle body switching value by switch quantity acquisition circuit; Described switch quantity acquisition circuit comprises that polarity free capacitor C162, C163 and resistance R 168, R169, R176, R177, R185, R186, R187 form; One end of described capacitor C 162 connects one end of external switch amount signal input part (SW_IN15) and resistance R 168, R169, R176, R185, R186, and the other end of capacitor C 162 connects ground; The other end of resistance R 168 connects the other end of BAT_POWER2 power end and resistance R 169; The other end of resistance R 185 connects ground; The other end of resistance R 186 connects ground; The other end contact resistance R187 of resistance R 176, one end of R177; The other end of resistance R 187 connects ground; The other end of resistance R 177 connects the collection pin SW_AD15 of central Body Control MCU and one end of capacitor C 163; The other end of capacitor C 163 connects ground.
Above-described all electric capacity is polarity free capacitor; Bilateral diode Q2 and bilateral diode Q4 are BAV99 bilateral diode.
Central authorities' vehicle body control unit 1 is normal electric duty, and its mode of operation is divided normal and park mode.
Under park mode, whole central vehicle body control unit 1 remains on low power consumpting state, when be connected to there is arousal function pin key power switch amount effectively after, system can enter comprehensive duty within the utmost point short time, carry out System self-test, the communication of the electronic installations such as startup and combination instrument 2, Engine ECU 81.Enter after normal operating conditions, central authorities' vehicle body control unit 1 is by the just information such as left and right turn nearby, position lamp, oil mass, air pressure, the speed of a motor vehicle of self integrated switching value, analog quantity, the collection of pulse collection function, the information that gathers combined switch 3, temperature and air pressure sensor by integrated LIN bus circuit, realizes the monitoring of car load vehicle body state.CAN bus circuit is for realizing the information interaction between (central vehicle body control unit 1) and Engine ECU 83, ABSECU82, wheel box ECU81 and sharing the information such as Real-time Collection engine speed and temperature, ABS state, wheel box state; By with the real-time communication of combination instrument 2, drive recorder 21, realize information demonstration, warning, the record of vehicle body state; Connect body structure module 10 and body rear end module 11 in addition by self integrated power stage function, and by CAN bus circuit, body light system, car door, windscreen wiper etc. are realized and being controlled.
In the utility model, the CAN bus circuit of combination in central vehicle body control unit 1, can compatibility most of active safety system on the market, as Mobileye etc.
In concrete use procedure, use is arranged on the identification of the intelligent video camera head on front windshield vehicle in car, lane line, traffic sign and pedestrian, carry out measuring vehicle by Mobileye, traffic lane line and pedestrian's distance, and realize the information interaction between Mobileye and central vehicle body control unit 1 by the CAN bus circuit described in the utility model, finally pass through central vehicle body control unit 1 through analog quantity acquisition circuit, CAN bus circuit, LIN bus circuit, pulse acquisition circuit, other respective electronic systems in the control such as power output circuit and switch quantity acquisition circuit car are sent alarm signal, the problem of reminding driver may occur in driving procedure, and avoid in advance the generation (being mainly the feedback that realizes information by the sensor group 4 of LIN bus circuit control) of accident.By the information interaction function of Mobileye and central vehicle body control unit 1, make automobile drive process in can realize below some function: the pedestrian impact early warning (PCW) under daytime, front shock early warning (FCW), lane departur warning (LDW), spacing monitoring and warning (HMW), intelligence high beam (ICH), Traffic Sign Recognition (TSR).
In central vehicle body control unit 1, access active safety system (safety control system), for the traffic safety of vehicle has added one one-tenth protective cover.Vehicle in the process of moving as may with pedestrian impact, utilize the pedestrian impact warning function of active safety system, send braking information warning to driver in time, and other electrical equipment that central vehicle body control unit 1 controls in body control system that pass through initiatively send sound/light/electricity warning information, prompting pedestrian notes personal safety.When vehicle, in road driving process, deviation will occur, central authorities' vehicle body control unit 1 obtains safe lane departur warning by CAN bus circuit to active safety system, and control body light system and light in time brake lamp and warning light, to inform that nearby vehicle pedestrian notes dodging.Utilize the intelligent road function of active safety system can also realize the intellectuality control of high beam, when vehicle is at driving at night, during as vehicle meeting, central authorities' vehicle body control unit 1 can capture the intelligent distance light information of active safety system in time, close timely or open high beam, can avoid vehicle collision in Vehicle during Crossing Event.In central vehicle body control unit 1, access active safety system, can be for carrying out accident early warning in vehicle driving process, and realize the Body Control of car load by the whole-control system (body control system) of central vehicle body control unit 1, to driver and road vehicle and pedestrian's early warning, avoid as much as possible the generation of accident.
At present many active safety systems that use in commercial car, with power and the vehicle body of vehicle be separate.The Production design producer of active safety system and automotive electronics producer are owing to belonging to two fields, and the cooperation of existence is fewer.Passenger car field be substantially depot by buying out the technology of active safety system producer, then combine and develop the technology of the ACTIVE CONTROL such as adaptive cruise with the automobile electronic system of self.But at present domestic commercial car car load factory all lacks this class research and development ability substantially, so the system that active safety and automobile power, vehicle body are associated is considerably less.And the utility model carries out compatibility by the information interaction between body control system and safety control system by central vehicle body control unit 1 by analog quantity acquisition circuit, CAN bus circuit, LIN bus circuit, pulse acquisition circuit, power output circuit and switch quantity acquisition circuit, realize the communication of information and share, increasing the security performance of running car.
Finally, it is also to be noted that, what more than enumerate is only a specific embodiment of the present utility model.Obviously, the utility model is not limited to above embodiment, can also have many distortion.All distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model, all should think protection domain of the present utility model.
Claims (8)
1. a central body control system for compatible active safety system, comprises central vehicle body control unit (1), body control system and safety control system, described body control system is central vehicle body control unit (1) and wheel box ECU (81), anti-skid braking system ECU (82), Engine ECU (83), lighting system, windscreen wiper spray (72), electric switch (73), other electrical equipment (74), remote access control system (5), onboard diagnostic system (6), sensor group (4), combined switch (3), combination instrument (2), between other body electric systems and other vehicle body switching value output modules, form after signal connects and form, it is characterized in that: described safety control system comprises ADAS system (9), front-end module (10) and rear module (11),
Described ADAS system (9), front-end module (10) and rear module (11) are connected with central vehicle body control unit (1) signal respectively;
Described wheel box ECU (81), anti-skid braking system ECU (82), Engine ECU (83), lighting system, windscreen wiper spray (72), electric switch (73), other electrical equipment (74), remote access control system (5), onboard diagnostic system (6), sensor group (4), combined switch (3), combination instrument (2), other body electric systems and other vehicle body switching value output modules and ADAS system (9), between front-end module (10) and rear module (11), carry out information interaction by central vehicle body control unit (1).
2. the central body control system of compatible active safety system according to claim 1, is characterized in that: described central vehicle body control unit (1) is 32 central Body Control MCU;
The reserved analog quantity acquisition circuit of described central Body Control MCU is connected with cooling-water temperature sensor, baroceptor in sensor group (4);
Described analog quantity acquisition circuit comprises resistance R 5, R6, R7, R9, R13, R14, R15, R19, capacitor C 7, C8, C11, C12, diode D2, D4, bilateral diode Q2, Q4;
The AD6 of the described capacitor C 8 one Body Control MCU of termination central authorities gathers port and resistance R 7 one end, capacitor C 8 other end ground connection; One end of the port 3 of resistance R 7 another termination bilateral diode Q2 and resistance R 6, R9; The another port common ground of the port one of bilateral diode Q2 and resistance R 9; Connect+5V of port 2 output port of bilateral diode Q2; Resistance R 6 another port connect one end of sensor signal lines and resistance R 5, capacitor C 7; The negative pole of resistance R 5 another terminating diode D2; The positive pole of diode D2 connects the power end of vehicle body voltage collection circuit; The other end ground connection of capacitor C 7;
AD7 port and resistance R 15 one end of the described capacitor C 12 1 Body Control MCU of termination central authorities, capacitor C 12 other end ground connection; Resistance R 15 ports 3 of another termination bilateral diode Q4 and one end of resistance R 14,19; The another port common ground of the port one of bilateral diode Q4 and resistance R 19; Connect+5V of port 2 output port of bilateral diode Q4; Resistance R 14 another port connect sensor signal lines and resistance R 13, capacitor C 11 one end; The negative pole of resistance R 13 another terminating diode D4; The positive pole of diode D4 connects the power end of voltage collection circuit; The other end ground connection of capacitor C 11.
3. the central body control system of compatible active safety system according to claim 2, is characterized in that: described central vehicle body control unit (1) and combination instrument (2), OBD onboard diagnostic system (6), power assembly (8), car load electrical apparatus control system (7), ADAS system (9), front-end module (10), rear module are connected by CAN bus circuit between (11);
Described CAN bus circuit comprises CAN physical chip U1, resistance R 40, R41, R42, R43, capacitor C 37, C24, esd protection diode Q10, CAN traffic filter B1;
Port 2 ground connection of described CAN physical chip U1, connect+5V of port 3 power supply, port 8 connects the control pin of central Body Control MCU and one end of resistance R 43, the other end ground connection of resistance R 43 for model selection port; The port one of chip U1 is the output terminal of CAN0_TX, the input end that the port 4 of chip U1 is CAN0_RX; The port 6 connecting resistance R40 of chip U1, the port 7 connecting resistance R42 of chip U1, the port 5 of chip U1 is unsettled;
The port 4 of another termination CAN traffic filter B1 of described resistance R 40; The port 3 of another termination CAN traffic filter B1 of resistance R 42; The port one connecting resistance R41 of CAN traffic filter B1 and one end of capacitor C 37, the other end ground connection of capacitor C 37; The other end of port 2 connecting resistance R41 of CAN traffic filter B1 and one end of capacitor C 24; The other end ground connection of capacitor C 24;
The port one of CAN traffic filter B1 connects the port one of esd protection diode Q10, and the port 2 of CAN traffic filter B1 connects the port 2 of esd protection diode Q10; Port 3 ground connection of esd protection diode Q10.
4. the central body control system of compatible active safety system according to claim 3, is characterized in that: between the sensor such as room temperature and smog in described central vehicle body control unit (1) and combined switch (3), sensor (4), RKE gate module (5), be connected by LIN bus circuit;
Described LIN bus circuit comprises physical chip U8, resistance R 76, R71, R72, R75, R78, capacitor C 70, C71, diode D10;
The port one of described chip U8 is signal receiving end, by the MCU end that is connected to central vehicle body control unit of pull-up resistor R71, the port 2 of chip U8 is the control pin of the Body Control MCU of pattern control termination central authorities, one end of port 3 contact resistance R76 of U8 and one end of capacitor C 70, the port 4 of U8 is connected by the signal output part of the LIN1_TX of pull-up resistor R72 and central Body Control MCU for signal sending end, and the port 5 of U8 is earth terminal; The port 6 of U8 is connected to outside LIN bus by R78, and process C71 filtering, and on R75, D10, comes the port 8 of U8.
5. the central body control system of compatible active safety system according to claim 4, is characterized in that: the reserved pulse acquisition circuit of described central vehicle body control unit (1) can pick-up transducers group (4) in vehicle speed sensor or signals of rotational speed sensor;
Described pulse acquisition circuit comprises LM2903 voltage comparator U19-1, U19-2, diode D24, D25, D26, D27, capacitor C 140, C143, C146, C147, C148, C149, C150, C155, resistance R 120, R121, R126, R128, R129, R141, R142, R143, R144, R145, R151, R152, R158, R159;
Described pulse acquisition circuit 0 syndeton is as follows:
Diode D24 negative pole connects one end of the speed of a motor vehicle or speed probe input end and capacitor C 143, one end of anodal contact resistance R120, R128, the other end of capacitor C 143 connects ground, one end of other end contact resistance R121, the R126 of resistance R 120 and+5V output port, one end of other end contact resistance R129 of resistance R 128 and the negative pole of diode D25, the positive pole of diode D25 connects ground, the other end of resistance R 129 connects one end of capacitor C 140 and the port 2 of LM2903 voltage comparator U19-1, the other end of capacitor C 140 connects ground, the other end of port 3 contact resistance R121 of LM2903 voltage comparator U19-1 and one end of resistance R 141, the port 3 of LM2903 voltage comparator U19-1 is gone back one end of contact resistance R142 and one end of capacitor C 147 simultaneously, the port 4 of LM2903 voltage comparator U19-1 connects ground, connect+5V of port 8 output port of LM2903 voltage comparator U19-1, the other end of port one contact resistance R126 of LM2903 voltage comparator U19-1 and one end of capacitor C 146, the port one of LM2903 voltage comparator U19-1 is gone back the other end of contact resistance R142 and the other end of capacitor C 147 simultaneously, the other end of capacitor C 146 connects ground, the pulse capture pin of the vehicle body control unit MCU of central authorities connects the port one of LM2903 voltage comparator U19-1,
Described pulse acquisition circuit 1 syndeton is as follows:
Diode D26 negative pole connects one end of the speed of a motor vehicle or speed probe input end and capacitor C 148, one end of anodal contact resistance R143, R151, the other end of capacitor C 148 connects ground, one end of other end contact resistance R144, the R145 of resistance R 143 and+5V output port, one end of other end contact resistance R152 of resistance R 151 and the negative pole of diode D27, the positive pole of diode D27 connects ground, the other end of resistance R 152 connects one end of capacitor C 149 and the port 6 of LM2903 voltage comparator U19-2, the other end of capacitor C 149 connects ground, the other end of port 5 contact resistance R144 of LM2903 voltage comparator U19-2 and one end of resistance R 158, the port 5 of LM2903 voltage comparator U19-2 is gone back one end of contact resistance R159 and one end of capacitor C 155 simultaneously, the other end of port 7 contact resistance R145 of LM2903 voltage comparator U19-2 and one end of capacitor C 150, the port 7 of LM2903 voltage comparator U19-2 is gone back the other end of contact resistance R159 and the other end of capacitor C 155 simultaneously, the port 9 of LM2903 voltage comparator U19-2 connects ground, connect+5V of port one 0 output port of LM2903 voltage comparator U19-2, the other end of capacitor C 150 connects ground, the pulse capture pin of the vehicle body control unit MCU of central authorities connects the port 7 of LM2903 voltage comparator U19-2.
6. the central body control system of compatible active safety system according to claim 5, is characterized in that: between described central vehicle body control unit (1) and car load electrical equipment, be connected by power output circuit;
Described power output circuit comprises BTS723 chip U21, diode D31, D32, D33, resistance R 253, R254, R255;
The port one of BTS723 chip U21, 7, 8, 14 connect outside power power-supply, the port 2 of BTS723 chip U21 is received the control end of central Body Control MCU by pull down resistor R253, the port 3 of BTS723 chip U21 is indicated port for power chip duty and is connected to the collection pin of central Body Control MCU, the port 4 of BTS723 chip U21 is by resistance R 254 and diode D31 and be connected to ground, the port 5 of BTS723 chip U21 is indicated port for power chip duty and is connected to the collection pin of central Body Control MCU, the port 6 of BTS723 chip U21 is received the control end of central Body Control MCU by pull down resistor R255, the port 9 of BTS723 chip U21 and port one 0 are that metal-oxide-semiconductor power stage port passes through parallel diode D33 over the ground, connect+5V of the port one 1 Voltage-output port of BTS723 chip U21, the port one 2 of BTS723 chip U21 and port one 0 are metal-oxide-semiconductor power stage port.
7. the central body control system of compatible active safety system according to claim 6, is characterized in that: described central vehicle body control unit (1) gathers vehicle body switching value by switch quantity acquisition circuit;
Described switch quantity acquisition circuit comprises that polarity free capacitor C162, C163 and resistance R 168, R169, R176, R177, R185, R186, R187 form;
One end of one end connection external switch amount signal input part of described capacitor C 162 and resistance R 168, R169, R176, R185, R186, the other end of capacitor C 162 connects ground; The other end of resistance R 168 connects the other end of power end and resistance R 169; The other end of resistance R 185 connects ground; The other end of resistance R 186 connects ground; The other end contact resistance R187 of resistance R 176, one end of R177; The other end of resistance R 187 connects ground; The other end of resistance R 177 connects the collection pin of central Body Control MCU and one end of capacitor C 163; The other end of capacitor C 163 connects ground.
8. the central body control system of compatible active safety system according to claim 7, is characterized in that: described electric capacity is polarity free capacitor; Bilateral diode Q2 and bilateral diode Q4 are BAV99 bilateral diode; Described central Body Control MCU is MPC560X B chip; Described CAN physical chip U1 is TJA1050T chip.
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| CN201420394035.3U CN203941442U (en) | 2014-07-16 | 2014-07-16 | The central body control system of compatible active safety system |
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| CN201420394035.3U CN203941442U (en) | 2014-07-16 | 2014-07-16 | The central body control system of compatible active safety system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105281211A (en) * | 2015-11-18 | 2016-01-27 | 浙江中科正方电子技术有限公司 | A control device for a vehicle high-tension distribution box |
| CN109760607A (en) * | 2018-10-25 | 2019-05-17 | 郑州跃博汽车电器有限公司 | A kind of vehicle intelligent electric appliance box |
| CN110874108A (en) * | 2019-12-24 | 2020-03-10 | 乐星汽车技术（无锡）有限公司 | Direct current voltage stabilizer for quickly starting and stopping engine system |
| CN112186279A (en) * | 2020-09-30 | 2021-01-05 | 宁波新舜信息科技有限公司 | Power management system with dormancy activation function |
| CN114103820A (en) * | 2021-11-30 | 2022-03-01 | 上汽通用五菱汽车股份有限公司 | Key configuration module, vehicle and key function configuration method |
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2014
- 2014-07-16 CN CN201420394035.3U patent/CN203941442U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105281211A (en) * | 2015-11-18 | 2016-01-27 | 浙江中科正方电子技术有限公司 | A control device for a vehicle high-tension distribution box |
| CN109760607A (en) * | 2018-10-25 | 2019-05-17 | 郑州跃博汽车电器有限公司 | A kind of vehicle intelligent electric appliance box |
| CN110874108A (en) * | 2019-12-24 | 2020-03-10 | 乐星汽车技术（无锡）有限公司 | Direct current voltage stabilizer for quickly starting and stopping engine system |
| CN110874108B (en) * | 2019-12-24 | 2024-06-11 | 乐星汽车技术（无锡）有限公司 | Direct current voltage stabilizer for quick start-stop engine system |
| CN112186279A (en) * | 2020-09-30 | 2021-01-05 | 宁波新舜信息科技有限公司 | Power management system with dormancy activation function |
| CN112186279B (en) * | 2020-09-30 | 2021-10-08 | 宁波新舜信息科技有限公司 | Power management system with dormancy activation function |
| CN114103820A (en) * | 2021-11-30 | 2022-03-01 | 上汽通用五菱汽车股份有限公司 | Key configuration module, vehicle and key function configuration method |
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