CN206264963U - A kind of CANFD gateway circuits for electric power steering - Google Patents
A kind of CANFD gateway circuits for electric power steering Download PDFInfo
- Publication number
- CN206264963U CN206264963U CN201621201626.XU CN201621201626U CN206264963U CN 206264963 U CN206264963 U CN 206264963U CN 201621201626 U CN201621201626 U CN 201621201626U CN 206264963 U CN206264963 U CN 206264963U
- Authority
- CN
- China
- Prior art keywords
- ports
- electric capacity
- circuit
- resistance
- circuit board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Small-Scale Networks (AREA)
Abstract
The utility model is related to field of circuit technology; concretely it is a kind of CANFD gateway circuits for electric power steering; the utility model monitors the temperature information in whole circuit using temperature sensing circuit; devise power source reverse connection protection circuit simultaneously; prevent impact failure of the voltage to gateway hardware circuit; the utility model has been carried out integrated and improved to whole gateway circuit, it is easily applied in various types of automobiles.
Description
Technical field
The utility model is related to field of circuit technology, is concretely a kind of CANFD gateways for electric power steering
Circuit.
Background technology
EPS mainly contains driver element, upper tubing string, four parts of jackshaft and manual steering gear, and gateway is just
It is the middle device as connection EPS and vehicle network.Gateway in current vehicle is the circuit managed using subregion
Feedback is attached, do so significantly increases the layout of circuit in vehicle, and easily occurs that power source temperature is too high to be burnt
Bad situation, once power supply is burned the disconnection that will result in vehicle network and EPS, causes vehicle to be paralysed, and threatens driving
Safety.
A kind of CANFD nets of the function with detection power source temperature protection power supply of integration are devised for this utility model
Powered-down road.
The content of the invention
The utility model breaches the problem of prior art, devises a kind of the electric with detection power source temperature protection of integration
The CANFD gateway circuits of the function in source.
In order to achieve the above object, the utility model devises a kind of CANFD gateway circuits for electric power steering,
Including：MCU minimum systems circuit, EMC filter circuit, power circuit, CAN communication circuit, power source reverse connection protection circuit, temperature inspection
Slowdown monitoring circuit, it is characterised in that：MCU minimum systems circuit is connected with power circuit, temperature sensing circuit, CAN communication circuit respectively,
Power circuit is divided into 2 tunnels and is connected with CAN communication circuit, power source reverse connection protection circuit respectively again, power source reverse connection protection circuit also with
EMC filter circuit, CAN communication circuit are connected, and EMC filter circuit is connected with CAN communication circuit.
The MCU minimum systems circuit is by main circuit board, crystal oscillating circuit, MCU debugging interfaces circuit and electric source filter circuit
Composition, JP0 TDI, JP1 TDO, JP2 TCK, the JP5 TRDY ports of the wherein main circuit board of main circuit board are adjusted with MCU respectively
Examination interface circuit is connected, and EVCC, AVCC port of main circuit board are connected to electric source filter circuit, X1, X2 of main circuit board
Port is connected with crystal oscillating circuit, the RESET interfaces of main circuit board be divided into 2 tunnels respectively with power circuit, MCU debugging interface circuit phases
Connect, TXD1, RXD1, TXD2, RXD2, TJA1145 SOMI1, TJA1145 SIMO1, TJA1145 CLK1 of main circuit board,
TJA1145 SCSN1、TJA1051 S1、TJA1051 S2、TJA1145 SCSN2、TJA1145 SIMO2、TJA1145 CLK2、
TJA1145 SOMI2 ports are connected with CAN communication circuit, and the MCUTemp ports of main circuit board are connected with temperature sensing circuit, main
The AWOVSS ports of circuit board are divided into the one end of 2 tunnels respectively with ground, electric capacity C34 and are connected, the other end of electric capacity C34 then with main electricity
The AWOVAL ports of road plate are connected, and the EVSS ports ground connection of main circuit board, the A0VSS ports of main circuit board are also grounded, main circuit
The ISOVSS ports of plate are divided into the one end of 2 tunnels respectively with ground, electric capacity C33 and are connected, the other end and the main circuit board of electric capacity C33
ISOVCL ports are connected, and the FLMD0 of main circuit board points is connected for 2 tunnels one end respectively with resistance R4, MCU debugging interface circuits,
The other end ground connection of resistance R4.
The crystal oscillating circuit is made up of electric capacity C35, electric capacity C36 and crystal oscillator Y1, one end of crystal oscillator Y1 be divided into 2 tunnels respectively with master
The X2 ports of circuit board, one end of electric capacity C35 are connected, the other end of crystal oscillator Y1 be divided into X1 port of 2 tunnels respectively with main circuit board,
One end of electric capacity C36 is connected, and the other end of electric capacity C35 is connected and is grounded with the other end of electric capacity C36.
The TCK/FPCK ports of the debugging circuit board in the MCU debugging interfaces circuit and the JP2 TCK ends of main circuit board
Mouth is connected, and the TDO/FPDT ports of debugging circuit board are connected with the JP1 TDO ports of main circuit board, the TDI/ of debugging circuit board
FPDT ports are divided into JP0 TDI port of 2 tunnels respectively with main circuit board, one end of reserved resistance R15 and are connected, reserved resistance R15
Other end ground connection, the RDY ports of debugging circuit board are connected with the JP5 TRDY ports of main circuit board, debugging circuit board
RESET ports are connected with the RESET ports of main circuit board, the GND ports ground connection of debugging circuit board, the FLMD0 of debugging circuit board
Port is connected with the FLMD0 ports of main circuit board, and the vdd terminal mouthful of debugging circuit board is connected with 5v power supplys.
AVCC ports are divided into AVCC port, 5v power supply, electric capacity of 9 tunnels respectively with main circuit board in the electric source filter circuit
One end of C23, the EVCC ports of main circuit board, one end of electric capacity C26, one end of electric capacity C27, one end of electric capacity C28, electric capacity
One end of C24, one end of electric capacity C25 is connected, and the other end of electric capacity C23 is connected with ground, and the other end of electric capacity C26 is divided into 5 tunnels
Respectively with ground, the other end of electric capacity C27, the other end of electric capacity C28, the other end of electric capacity C24, the other end phase of electric capacity C25
Even.
One end of inductance L1 is divided into 5 tunnels in the EMC filter circuit, one end respectively with electric capacity C2, one end of electric capacity C3,
One end of electric capacity C4, one end of electric capacity C5, CAN communication circuit are connected, and the other end of electric capacity C2 is connected with one end of electric capacity C16,
The other end of electric capacity C3 is connected with one end of electric capacity C17, and the other end of electric capacity C4 is connected with one end of electric capacity C18, electric capacity C5's
The other end is connected with the other end of electric capacity C11, and the other end of inductance L1 is divided into 5 tunnels, one end respectively with electric capacity C6, electric capacity C7
One end, one end of electric capacity C8, one end of electrochemical capacitor C9, power source reverse connection protection circuit are connected, the other end and electric capacity of electric capacity C6
One end of C12 is connected, and the other end of electric capacity C7 is connected with one end of electric capacity C13, the other end of electric capacity C8 and one end of electric capacity C14
Be connected, the other end of point solution electric capacity C9 be divided into 9 tunnels respectively with ground, the other end of electric capacity C14, the other end of electric capacity C13, electric capacity
The other end of C12, the other end of electric capacity C11, the other end of electric capacity C18, the other end of electric capacity C17, the other end of electric capacity C16,
CAN communication circuit is connected.
The RESET ports of power supply chip are divided into 2 tunnels in the power circuit, respectively with the RESET of MCU minimum system circuits
Port, one end of resistance R1 are connected, and the other end of resistance R1 is connected with 5v power supplys, DELAY ports and the electric capacity C10 of power supply chip
One end be connected, the other end of electric capacity C10 ground connection, the VOUT ports of power supply chip are divided into 2 tunnels, respectively with 5v power supplys, electric capacity C15
One end be connected, the other end of electric capacity C15 is divided into GND1 port of 2 tunnels respectively with ground, power supply chip and is connected, power supply chip
VIN ports are divided into 2 tunnels, and the one end with power source reverse connection protection circuit, electric capacity C1 is connected respectively, the other end ground connection of electric capacity C1, electricity
The EN ports of source chip, are divided into one end respectively with resistance R2 of 2 tunnels, one end of resistance R3 and are connected, the other end and the electricity of resistance R2
Source reverse-connection protection circuit is connected, and the other end of resistance R3 is connected with CAN communication circuit, the GND2 ports ground connection of power supply chip.
The CAN communication circuit is made up of secondary circuit one, secondary circuit two and connector, and one end of secondary circuit one is with MCU most
Mini system circuit is connected, and the other end of secondary circuit one is connected with the CAN1 H ports of connector, CAN1 L ports, secondary circuit two
One end is connected with MCU minimum system circuits, the other end of secondary circuit two and the CAN2 H ports of connector, CAN2 L ports phase
Even, the KL15 IN ports of connector are divided into KL15 OUT terminal mouthful of 2 tunnels respectively with EMC filter circuit, connector and are connected, and patch
The KL31 ports of part are also connected with EMC filter circuit.
The BAT ports of circuit chip one are connected with power source reverse connection protection circuit in the secondary circuit one, circuit chip one
TXD ports are divided into TXD1 port of 2 tunnels respectively with main circuit board in test point TP3, MCU minimum system circuit and are connected, circuit core
The RXD ports of piece one are divided into RXD1 of 2 tunnels respectively with main circuit board in test point TP2, MCU minimum system circuit and are connected, circuit
The SCSN ports of chip one be divided into 2 tunnels respectively with one end of resistance R9, one end of resistance R10 is connected, the other end of resistance R9 with
The TJA1145 SCSN1 ports of main circuit board are connected in MCU minimum system circuits, the other end and the minimum systems of MCU of resistance R10
The TJA1051 S1 ports of main circuit board are connected in system circuit, and the SCK ports of circuit chip one are main with MCU minimum system circuits
The TJA11475 CLK1 ports of circuit board are connected, SDO ports and the main circuit board in MCU minimum system circuits of circuit chip one
TJA1145 SOMI1 ports be connected, the SDI ports of circuit chip one are divided into 2 tunnels, one end respectively with resistance R13, resistance
One end of R14 is connected, and the other end of resistance R13 is connected with the TJA1145 SIMO1 of main circuit board in MCU minimum system circuits,
The other end of resistance R14 is connected with 5v power supplys, and the VCC ports of circuit chip one are connected with 5v power supplys, the GND ends of circuit chip one
Mouthful ground connection, the WAKE ports of circuit chip one are divided into one end respectively with resistance R5 of 2 tunnels, one end of resistance R8 and are connected, resistance R5
The other end be connected with 5v power supplys, the other end of resistance R8 ground connection, the CANH ports of circuit chip one are divided into 2 tunnels, respectively with survey
Pilot TP4,3 pin of common mode inductance L2 are connected, 2 pin of common mode inductance L2 be divided into 5 tunnels respectively with one end of resistance R6, electric capacity C19
One end, test point TP1,1 pin of electrostatic protection diode U4, connector CAN1 H ports be connected, the other end of electric capacity C19
Ground connection, the other end of resistance R6 is connected with one end of resistance R7, and the other end of resistance R7 is divided into 2 tunnels respectively with the one of electric capacity C21
End, one end of resistance R12 are connected, and the other end ground connection of electric capacity C21, the other end of resistance R12 is connected with one end of resistance R11,
The other end of resistance R11 is divided into 1 pin, one end of electric capacity C22, test point TP6, electrostatic protection of 5 tunnels respectively with common mode inductance L2
2 pin of diode U4, the CAN1 L ports of connector are connected, the other end ground connection of electric capacity C22, the 3 of electrostatic protection diode U4
Pin is grounded, and 4 pin of common mode inductance L2 are connected with the CANL ports of test point TP5, circuit chip one, the VIO of circuit chip one
Port is connected with 5v power supplys, and 5v power supplys are grounded after being connected with electric capacity C20.
BAT ports in the secondary circuit two in circuit chip two are connected with power source reverse connection protection circuit, circuit chip two
In TXD ports be divided into TXD2 of the two-way respectively with main circuit board in test point TP9, MCU minimum system circuit and be connected, circuit core
The RXD ports of piece two are divided into RXD2 of 2 tunnels respectively with main circuit board in test point TP8, MCU minimum system circuit and are connected, circuit
The SCSN ports of chip two be divided into 2 tunnels respectively with one end of resistance R20, one end of resistance R21 is connected, the other end of resistance R20
TJA1145 SCSN2 ports with main circuit board in MCU minimum system circuits are connected, and the other end of resistance R21 is minimum with MCU
The TJA1051 S2 ports of main circuit board are connected in circuit system, in the SCK ports of circuit chip two and MCU minimum system circuits
The TJA11475 CLK2 ports of main circuit board are connected, SDO ports and the main circuit in MCU minimum system circuits of circuit chip two
The TJA1145 SOMI2 ports of plate are connected, and the SDI ports of circuit chip two are divided into 2 tunnels, one end respectively with resistance R24, resistance
One end of R25 is connected, and the other end of resistance R24 is connected with the TJA1145 SIMO2 of main circuit board in MCU minimum system circuits,
The other end of resistance R25 is connected with 5v power supplys, and the VCC ports of circuit chip two are connected with 5v power supplys, the GND ends of circuit chip two
Mouthful ground connection, the EN PWR ports of circuit chip two are connected with power circuit, the WAKE ports of circuit chip two be divided into 2 tunnels respectively with
One end of resistance R16, one end of resistance R19 are connected, and the other end of resistance R16 is connected with 5v power supplys, another termination of resistance R19
Ground, the CANH ports of circuit chip one are divided into 2 tunnels, and 3 pin with test point TP10, common mode inductance L3 are connected respectively, common mode inductance
2 pin of L3 be divided into 5 tunnels respectively with one end of resistance R17, one end, test point TP7, the 1 of electrostatic protection diode U6 of electric capacity C29
Pin, the CAN2 H ports of connector are connected, the other end of electric capacity C29 ground connection, the other end of resistance R17 and one end of resistance R18
It is connected, the other end of resistance R18 is divided into one end respectively with electric capacity C31 of 2 tunnels, one end of resistance R23 and is connected, and electric capacity C31's is another
One end is grounded, and the other end of resistance R23 is connected with one end of resistance R22, the other end of resistance R22 be divided into 5 tunnels respectively with common mode
1 pin of inductance L3, one end of electric capacity C32, test point TP12,2 pin of electrostatic protection diode U6, the CAN2 L ports of connector
It is connected, the other end ground connection of electric capacity C32, the 3 pin ground connection of electrostatic protection diode U6,4 pin and test point of common mode inductance L3
TP11, the CANL ports of circuit chip two are connected, and the VIO ports of circuit chip two are connected with 5v power supplys, 5v power supplys and electric capacity
It is grounded after C30 series connection.
The power source reverse connection protection circuit is made up of diode D1 and TVS diode D2, and anode and the EMC of diode D1 are filtered
Wave circuit is connected, and the negative electrode of diode D1 is divided into 3 tunnels, negative electrode respectively with TVS diodes D2, power circuit, CAN communication circuit
It is connected, the plus earth of TVS diode D2.
One end of electric capacity C37 is divided into one end, the one of resistance R27 of 4 tunnels respectively with resistance R26 in the temperature retrieval circuit
The MCU Temp ports of main circuit board are connected in end, one end of thermistor NTC1, MCU minimum system circuits, and resistance R26's is another
One end is connected with the AVCC ports of main circuit board in MCU minimum system circuits, and the other end of thermistor NTC1 is divided into 3 tunnels difference
The other end with ground, the other end of resistance R27, electric capacity C37 is connected.
The auspicious Sa RH850F1K series of model of the main circuit board.
The model TPS7B6750QPWPR of the power supply chip.
The connector is TJA1145 chips.
The utility model compared with prior art, monitors the temperature information in whole circuit, together using temperature sensing circuit
When devise power source reverse connection protection circuit, it is therefore prevented that impact failure of the voltage to gateway hardware circuit, the utility model is to whole
Gateway circuit has been carried out integrated and improved, and it is easily applied in various types of automobiles.
Brief description of the drawings
Fig. 1 is the MCU minimum system circuits in the utility model.
Fig. 2 is the EMC filter circuit in the utility model.
Fig. 3 is the power circuit in the utility model.
Fig. 4 is the CAN communication circuit in the utility model.
Fig. 5 is the power source reverse connection protection circuit in the utility model.
Fig. 6 is the temperature sensing circuit in the utility model.
Fig. 7 is schematic diagram of the utility model in specific implementation.
Specific embodiment
The utility model is described further with reference to accompanying drawing.
Referring to Fig. 1 ~ Fig. 7, the utility model devises a kind of CANFD gateway circuits for electric power steering, including：
MCU minimum systems circuit, EMC filter circuit, power circuit, CAN communication circuit, power source reverse connection protection circuit, temperature detection electricity
Road, MCU minimum systems circuit is connected with power circuit, temperature sensing circuit, CAN communication circuit respectively, and power circuit is divided into 2 again
Road is connected with CAN communication circuit, power source reverse connection protection circuit respectively, power source reverse connection protection circuit also with EMC filter circuit, CAN
Communicating circuit is connected, and EMC filter circuit is connected with CAN communication circuit.
MCU minimum systems circuit is by main circuit board, crystal oscillating circuit, MCU debugging interfaces circuit and power supply in the utility model
Filter circuit is constituted, the JP0 TDI of the wherein main circuit board of main circuit board, JP1 TDO, JP2 TCK, JP5 TRDY ports difference
It is connected with MCU debugging interface circuits, EVCC, AVCC port of main circuit board are connected to electric source filter circuit, main circuit board
X1, X2 port be connected with crystal oscillating circuit, the RESET interfaces of main circuit board are divided into 2 tunnels and are connect with power circuit, MCU debugging respectively
Mouth circuit is connected, TXD1, RXD1, TXD2, RXD2, TJA1145 SOMI1, TJA1145 SIMO1, TJA1145 of main circuit board
CLK1、TJA1145 SCSN1、TJA1051 S1、TJA1051 S2、TJA1145 SCSN2、TJA1145 SIMO2、TJA1145
CLK2, TJA1145 SOMI2 ports are connected with CAN communication circuit, MCUTemp ports and the temperature sensing circuit phase of main circuit board
Even, the AWOVSS ports of main circuit board are divided into the one end of 2 tunnels respectively with ground, electric capacity C34 and are connected, and the other end of electric capacity C34 is then
It is connected with the AWOVAL ports of main circuit board, the EVSS ports ground connection of main circuit board, the A0VSS ports of main circuit board are also grounded,
The ISOVSS ports of main circuit board are divided into the one end of 2 tunnels respectively with ground, electric capacity C33 and are connected, the other end of electric capacity C33 and main electricity
The ISOVCL ports of road plate are connected, and FLMD0 points of main circuit board is 2 tunnels one end, MCU debugging interface circuits respectively with resistance R4
It is connected, the other end ground connection of resistance R4.
Crystal oscillating circuit is made up of electric capacity C35, electric capacity C36 and crystal oscillator Y1 in the utility model, and one end of crystal oscillator Y1 is divided into 2 tunnels
X2 ports respectively with main circuit board, one end of electric capacity C35 are connected, the other end of crystal oscillator Y1 be divided into 2 tunnels respectively with main circuit board
X1 ports, electric capacity C36 one end be connected, the other end of electric capacity C35 is connected and is grounded with the other end of electric capacity C36.
The TCK/FPCK ports of the debugging circuit board in the MCU debugging interfaces circuit and the JP2 TCK ends of main circuit board
Mouth is connected, and the TDO/FPDT ports of debugging circuit board are connected with the JP1 TDO ports of main circuit board, the TDI/ of debugging circuit board
FPDT ports are divided into JP0 TDI port of 2 tunnels respectively with main circuit board, one end of reserved resistance R15 and are connected, reserved resistance R15
Other end ground connection, the RDY ports of debugging circuit board are connected with the JP5 TRDY ports of main circuit board, debugging circuit board
RESET ports are connected with the RESET ports of main circuit board, the GND ports ground connection of debugging circuit board, the FLMD0 of debugging circuit board
Port is connected with the FLMD0 ports of main circuit board, and the vdd terminal mouthful of debugging circuit board is connected with 5v power supplys.
In the utility model in electric source filter circuit AVCC ports be divided into 9 tunnels respectively with AVCC ports, the 5v of main circuit board
Power supply, one end of electric capacity C23, the EVCC ports of main circuit board, one end of electric capacity C26, one end of electric capacity C27, the one of electric capacity C28
End, one end of electric capacity C24, one end of electric capacity C25 are connected, and the other end of electric capacity C23 is connected with ground, the other end of electric capacity C26
Be divided into 5 tunnels respectively with ground, the other end of electric capacity C27, the other end of electric capacity C28, the other end of electric capacity C24, electric capacity C25 it is another
One end is connected.
One end of inductance L1 is divided into 5 tunnels in EMC filter circuit in the utility model, one end respectively with electric capacity C2, electric capacity
One end of C3, one end of electric capacity C4, one end of electric capacity C5, CAN communication circuit are connected, and the other end of electric capacity C2 is with electric capacity C16's
One end is connected, and the other end of electric capacity C3 is connected with one end of electric capacity C17, and the other end of electric capacity C4 is connected with one end of electric capacity C18,
The other end of electric capacity C5 is connected with the other end of electric capacity C11, and the other end of inductance L1 is divided into 5 tunnels, one end respectively with electric capacity C6,
One end of electric capacity C7, one end of electric capacity C8, one end of electrochemical capacitor C9, power source reverse connection protection circuit are connected, and electric capacity C6's is another
End is connected with one end of electric capacity C12, and the other end of electric capacity C7 is connected with one end of electric capacity C13, the other end and electric capacity of electric capacity C8
One end of C14 is connected, the other end of point solution electric capacity C9 be divided into 9 tunnels respectively with ground, the other end of electric capacity C14, electric capacity C13 it is another
One end, the other end of electric capacity C12, the other end of electric capacity C11, the other end of electric capacity C18, the other end of electric capacity C17, electric capacity C16
The other end, CAN communication circuit be connected.
The RESET ports of power supply chip are divided into 2 tunnels in the power circuit, respectively with the RESET of MCU minimum system circuits
Port, one end of resistance R1 are connected, and the other end of resistance R1 is connected with 5v power supplys, DELAY ports and the electric capacity C10 of power supply chip
One end be connected, the other end of electric capacity C10 ground connection, the VOUT ports of power supply chip are divided into 2 tunnels, respectively with 5v power supplys, electric capacity C15
One end be connected, the other end of electric capacity C15 is divided into GND1 port of 2 tunnels respectively with ground, power supply chip and is connected, power supply chip
VIN ports are divided into 2 tunnels, and the one end with power source reverse connection protection circuit, electric capacity C1 is connected respectively, the other end ground connection of electric capacity C1, electricity
The EN ports of source chip, are divided into one end respectively with resistance R2 of 2 tunnels, one end of resistance R3 and are connected, the other end and the electricity of resistance R2
Source reverse-connection protection circuit is connected, and the other end of resistance R3 is connected with CAN communication circuit, the GND2 ports ground connection of power supply chip.
The CAN communication circuit is made up of secondary circuit one, secondary circuit two and connector, and one end of secondary circuit one is with MCU most
Mini system circuit is connected, and the other end of secondary circuit one is connected with the CAN1 H ports of connector, CAN1 L ports, secondary circuit two
One end is connected with MCU minimum system circuits, the other end of secondary circuit two and the CAN2 H ports of connector, CAN2 L ports phase
Even, the KL15 IN ports of connector are divided into KL15 OUT terminal mouthful of 2 tunnels respectively with EMC filter circuit, connector and are connected, and patch
The KL31 ports of part are also connected with EMC filter circuit.
The BAT ports of circuit chip one are connected with power source reverse connection protection circuit in secondary circuit one in the utility model, circuit
The TXD ports of chip one be divided into 2 tunnels respectively with the TXD1 ports phase of main circuit board in test point TP3, MCU minimum system circuit
Even, the RXD ports of circuit chip one be divided into 2 tunnels respectively with the RXD1 of main circuit board in test point TP2, MCU minimum system circuit
Be connected, the SCSN ports of circuit chip one be divided into 2 tunnels respectively with one end of resistance R9, one end of resistance R10 is connected, resistance R9's
The other end is connected with the TJA1145 SCSN1 ports of main circuit board in MCU minimum system circuits, the other end of resistance R10 with
The TJA1051 S1 ports of main circuit board are connected in MCU minimum system circuits, SCK ports and the minimum systems of MCU of circuit chip one
The TJA11475 CLK1 ports of main circuit board are connected in system circuit, SDO ports and the MCU minimum system circuits of circuit chip one
The TJA1145 SOMI1 ports of middle main circuit board are connected, and the SDI ports of circuit chip one are divided into 2 tunnels, respectively with resistance R13's
One end, one end of resistance R14 are connected, the TJA1145 of main circuit board in the other end and MCU minimum system circuits of resistance R13
SIMO1 is connected, and the other end of resistance R14 is connected with 5v power supplys, and the VCC ports of circuit chip one are connected with 5v power supplys, circuit core
The GND ports ground connection of piece one, the WAKE ports of circuit chip one are divided into one end, the one end of resistance R8 of 2 tunnels respectively with resistance R5
It is connected, the other end of resistance R5 is connected with 5v power supplys, the other end ground connection of resistance R8, the CANH ports of circuit chip one are divided into 2
Road, respectively 3 pin with test point TP4, common mode inductance L2 be connected, 2 pin of common mode inductance L2 are divided into 5 tunnels respectively with the one of resistance R6
End, one end of electric capacity C19, test point TP1,1 pin of electrostatic protection diode U4, the CAN1 H ports of connector are connected, electric capacity
The other end ground connection of C19, the other end of resistance R6 is connected with one end of resistance R7, the other end of resistance R7 be divided into 2 tunnels respectively with
One end of electric capacity C21, one end of resistance R12 are connected, the other end ground connection of electric capacity C21, the other end and the resistance R11 of resistance R12
One end be connected, the other end of resistance R11 is divided into 1 pin, one end of electric capacity C22, test point of 5 tunnels respectively with common mode inductance L2
TP6,2 pin of electrostatic protection diode U4, the CAN1 L ports of connector are connected, the other end ground connection of electric capacity C22, electrostatic protection
The 3 pin ground connection of diode U4,4 pin of common mode inductance L2 are connected with the CANL ports of test point TP5, circuit chip one, circuit
The VIO ports of chip one are connected with 5v power supplys, and 5v power supplys are grounded after being connected with electric capacity C20.
BAT ports in the utility model in secondary circuit two in circuit chip two are connected with power source reverse connection protection circuit, electricity
TXD ports in road chip two be divided into two-way respectively with the TXD2 phases of main circuit board in test point TP9, MCU minimum system circuit
Even, the RXD ports of circuit chip two be divided into 2 tunnels respectively with the RXD2 of main circuit board in test point TP8, MCU minimum system circuit
Be connected, the SCSN ports of circuit chip two be divided into 2 tunnels respectively with one end of resistance R20, one end of resistance R21 is connected, resistance R20
The other end be connected with the TJA1145 SCSN2 ports of main circuit board in MCU minimum system circuits, the other end of resistance R21 with
The TJA1051 S2 ports of main circuit board are connected in MCU minimum system circuits, SCK ports and the minimum systems of MCU of circuit chip two
The TJA11475 CLK2 ports of main circuit board are connected in system circuit, SDO ports and the MCU minimum system circuits of circuit chip two
The TJA1145 SOMI2 ports of middle main circuit board are connected, and the SDI ports of circuit chip two are divided into 2 tunnels, respectively with resistance R24's
One end, one end of resistance R25 are connected, the TJA1145 of main circuit board in the other end and MCU minimum system circuits of resistance R24
SIMO2 is connected, and the other end of resistance R25 is connected with 5v power supplys, and the VCC ports of circuit chip two are connected with 5v power supplys, circuit core
The GND ports ground connection of piece two, the EN PWR ports of circuit chip two are connected with power circuit, the WAKE ports point of circuit chip two
For one end of 2 tunnels one end respectively with resistance R16, resistance R19 are connected, the other end of resistance R16 is connected with 5v power supplys, resistance
The other end ground connection of R19, the CANH ports of circuit chip one are divided into 2 tunnels, respectively with test point TP10,3 pin of common mode inductance L3
Be connected, 2 pin of common mode inductance L3 be divided into 5 tunnels respectively with one end of resistance R17, one end of electric capacity C29, test point TP7, electrostatic are prevented
1 pin of shield diode U6, the CAN2 H ports of connector are connected, the other end ground connection of electric capacity C29, the other end of resistance R17 with
One end of resistance R18 is connected, and the other end of resistance R18 is divided into one end, one end phase of resistance R23 of 2 tunnels respectively with electric capacity C31
Even, the other end ground connection of electric capacity C31, the other end of resistance R23 is connected with one end of resistance R22, and the other end of resistance R22 is divided into
5 tunnels 1 pin respectively with common mode inductance L3, one end of electric capacity C32, test point TP12,2 pin of electrostatic protection diode U6, patch
The CAN2 L ports of part are connected, the other end ground connection of electric capacity C32, the 3 pin ground connection of electrostatic protection diode U6, common mode inductance L3's
4 pin are connected with the CANL ports of test point TP11, circuit chip two, and the VIO ports of circuit chip two are connected with 5v power supplys, 5v
Power supply is grounded after being connected with electric capacity C30.
Power source reverse connection protection circuit is made up of diode D1 and TVS diode D2 in the utility model, the sun of diode D1
Pole is connected with EMC filter circuit, and the negative electrode of diode D1 is divided into 3 tunnels, negative electrode respectively with TVS diodes D2, power circuit,
CAN communication circuit is connected, the plus earth of TVS diode D2.
One end of electric capacity C37 is divided into one end, electricity of 4 tunnels respectively with resistance R26 in temperature retrieval circuit in the utility model
The MCU Temp ports for hindering main circuit board in one end, one end of thermistor NTC1, the MCU minimum system circuits of R27 are connected, electricity
The other end for hindering R26 is connected with the AVCC ports of main circuit board in MCU minimum system circuits, the other end point of thermistor NTC1
The other end for 3 tunnels respectively with ground, the other end of resistance R27, electric capacity C37 is connected.
The auspicious Sa RH850F1K series of the model of main circuit board in the utility model, safe class is ASILB, highest dominant frequency
Be 120MHz, with 6 CAN passages, support CANFD functions, highest communication speed up to 5Mbps, AD sampling precision 12bit,
And with hardware security module（HSM）.
The model TPS7B6750QPWPR of power supply chip in the utility model, highest can bear the voltage of 40v, maximum defeated
It is 450mA electric currents to go out, and the 5v voltages of stabilization can be provided when input voltage is for 6v ~ 18v, while having Thermal shutdown and short
Road defencive function.
Connector is TJA1145 chips in the utility model, and communication speed reaches as high as 2Mbuad, and with less
Electromagnetic radiation and anti-electromagnetic interference capability higher.
Referring to Fig. 7, in specific implementation, it is divided into the sending signal i.e. EPS controllers 5 of conversion and passes the signal along to vehicle 6, connects
A number conversion of collecting mail is that vehicle 6 passes the signal along to EPS controllers 5.
The step of sending signal is changed is as follows：
EPS controllers 5 send signal first, and signal is sent to EPS master chips 7, EPS master chips by bus transceiver A4-1
7 reception signals are simultaneously adjusted, and the EPS signals after adjustment then are sent into this by debugging interface 3 and bus transceiver B4-2
Utility model 1, and the EPS signals after debugging are fed back to EPS master chips 7, the utility model 1 and electricity by debugging interface 3 simultaneously
Source module 2 is connected, and the utility model 1 receives after EPS signals startup power supply and EPS signals are adjusted, after adjustment
EPS signal transmissions feed back to debugging interface 3 to vehicle 6 and simultaneously by EPS signals.
Receive as follows the step of signal is changed：
Vehicle 6 sends vehicle signal first, and vehicle signal is sent to EPS by the utility model 1 and bus transceiver B4-2
Vehicle signal is transferred again to debugging interface 3 and bus transceiver A4-1 by master chip 7, EPS master chips 7, and debugging interface 3 will be whole
Car signal is debugged, and the vehicle signal after debugging is sent into the utility model 1 and EPS master chips 7, the utility model 1
After receiving the vehicle signal transmitted by bus transceiver A4-1 and debugging interface 3, transmission power supply signal to power module 2, so
Afterwards by vehicle signal transmission to EPS controllers 5.
Claims (15)
1. a kind of CANFD gateway circuits for electric power steering, including：MCU minimum systems circuit, EMC filter circuit, electricity
Source circuit, CAN communication circuit, power source reverse connection protection circuit, temperature sensing circuit, it is characterised in that：MCU minimum systems circuit point
Be not connected with power circuit, temperature sensing circuit, CAN communication circuit, power circuit be divided into again 2 tunnels respectively with CAN communication circuit,
Power source reverse connection protection circuit is connected, and power source reverse connection protection circuit is also connected with EMC filter circuit, CAN communication circuit, EMC filtering
Circuit is connected with CAN communication circuit.
2. a kind of CANFD gateway circuits for electric power steering according to claim 1, it is characterised in that：It is described
MCU minimum systems circuit is made up of main circuit board, crystal oscillating circuit, MCU debugging interfaces circuit and electric source filter circuit, main circuit board
Wherein main circuit board JP0 TDI, JP1 TDO, JP2 TCK, JP5 TRDY ports respectively with MCU debugging interface circuit phases
Even, EVCC, AVCC port of main circuit board are connected to electric source filter circuit, X1, X2 port of main circuit board and crystal oscillator electricity
Road is connected, and the RESET interfaces of main circuit board are divided into 2 tunnels and are connected with power circuit, MCU debugging interface circuits respectively, main circuit board
TXD1, RXD1, TXD2, RXD2, TJA1145 SOMI1, TJA1145 SIMO1, TJA1145 CLK1, TJA1145 SCSN1,
TJA1051 S1、TJA1051 S2、TJA1145 SCSN2、TJA1145 SIMO2、TJA1145 CLK2、TJA1145 SOMI2
Port is connected with CAN communication circuit, and the MCUTemp ports of main circuit board are connected with temperature sensing circuit, main circuit board
AWOVSS ports are divided into the one end of 2 tunnels respectively with ground, electric capacity C34 and are connected, the other end of electric capacity C34 then with main circuit board
AWOVAL ports are connected, and the EVSS ports ground connection of main circuit board, the A0VSS ports of main circuit board are also grounded, main circuit board
ISOVSS ports are divided into the one end of 2 tunnels respectively with ground, electric capacity C33 and are connected, the other end and the main circuit board of electric capacity C33
ISOVCL ports are connected, and the FLMD0 of main circuit board points is connected for 2 tunnels one end respectively with resistance R4, MCU debugging interface circuits,
The other end ground connection of resistance R4.
3. a kind of CANFD gateway circuits for electric power steering according to claim 2, it is characterised in that：It is described
Crystal oscillating circuit is made up of electric capacity C35, electric capacity C36 and crystal oscillator Y1, one end of crystal oscillator Y1 be divided into 2 tunnels respectively with the X2 ends of main circuit board
Mouth, one end of electric capacity C35 are connected, and the other end of crystal oscillator Y1 is divided into X1 port, the one of electric capacity C36 of 2 tunnels respectively with main circuit board
End is connected, and the other end of electric capacity C35 is connected and is grounded with the other end of electric capacity C36.
4. a kind of CANFD gateway circuits for electric power steering according to claim 2, it is characterised in that：It is described
The TCK/FPCK ports of the debugging circuit board in MCU debugging interface circuits are connected with the JP2 TCK ports of main circuit board, debugging electricity
The TDO/FPDT ports of road plate are connected with the JP1 TDO ports of main circuit board, and the TDI/FPDT ports of debugging circuit board are divided into 2 tunnels
JP0 TDI ports respectively with main circuit board, one end of reserved resistance R15 are connected, and reserve the other end ground connection of resistance R15, adjust
The RDY ports for trying circuit board are connected with the JP5 TRDY ports of main circuit board, the RESET ports of debugging circuit board and main circuit
The RESET ports of plate are connected, the GND ports ground connection of debugging circuit board, FLMD0 ports and the main circuit board of debugging circuit board
FLMD0 ports are connected, and the vdd terminal mouthful of debugging circuit board is connected with 5v power supplys.
5. a kind of CANFD gateway circuits for electric power steering according to claim 2, it is characterised in that：It is described
AVCC ports are divided into AVCC port, 5v power supply, one end of electric capacity C23, master of 9 tunnels respectively with main circuit board in electric source filter circuit
The EVCC ports of circuit board, one end of electric capacity C26, one end of electric capacity C27, one end of electric capacity C28, one end of electric capacity C24, electric capacity
One end of C25 is connected, and the other end of electric capacity C23 is connected with ground, the other end of electric capacity C26 be divided into 5 tunnels respectively with ground, electric capacity
The other end of C27, the other end of electric capacity C28, the other end of electric capacity C24, the other end of electric capacity C25 are connected.
6. a kind of CANFD gateway circuits for electric power steering according to claim 1, it is characterised in that：It is described
One end of inductance L1 is divided into 5 tunnels in EMC filter circuit, one end, one end of electric capacity C3, the one of electric capacity C4 respectively with electric capacity C2
End, one end of electric capacity C5, CAN communication circuit are connected, and the other end of electric capacity C2 is connected with one end of electric capacity C16, and electric capacity C3's is another
One end is connected with one end of electric capacity C17, and the other end of electric capacity C4 is connected with one end of electric capacity C18, the other end and the electricity of electric capacity C5
The other end for holding C11 is connected, and the other end of inductance L1 is divided into 5 tunnels, one end respectively with electric capacity C6, one end of electric capacity C7, electric capacity
One end of C8, one end of electrochemical capacitor C9, power source reverse connection protection circuit are connected, the other end of electric capacity C6 and one end of electric capacity C12
It is connected, the other end of electric capacity C7 is connected with one end of electric capacity C13, and the other end of electric capacity C8 is connected with one end of electric capacity C14, point solution
The other end of electric capacity C9 be divided into 9 tunnels respectively with ground, the other end of electric capacity C14, the other end of electric capacity C13, electric capacity C12 it is another
End, the other end of electric capacity C11, the other end of electric capacity C18, the other end of electric capacity C17, the other end of electric capacity C16, CAN communication electricity
Road is connected.
7. a kind of CANFD gateway circuits for electric power steering according to claim 1, it is characterised in that：It is described
The RESET ports of power supply chip are divided into 2 tunnels in power circuit, RESET ports respectively with MCU minimum system circuits, resistance R1
One end be connected, the other end of resistance R1 is connected with 5v power supplys, and the DELAY ports of power supply chip are connected with one end of electric capacity C10,
The other end ground connection of electric capacity C10, the VOUT ports of power supply chip are divided into 2 tunnels, and the one end with 5v power supplys, electric capacity C15 is connected respectively,
The other end of electric capacity C15 is divided into GND1 port of 2 tunnels respectively with ground, power supply chip and is connected, and the VIN ports of power supply chip are divided into
2 tunnels, respectively the one end with power source reverse connection protection circuit, electric capacity C1 be connected, the other end of electric capacity C1 ground connection, the EN ends of power supply chip
Mouthful, it is divided into one end respectively with resistance R2 of 2 tunnels, one end of resistance R3 and is connected, the other end of resistance R2 is electric with reverse power connection protection
Road is connected, and the other end of resistance R3 is connected with CAN communication circuit, the GND2 ports ground connection of power supply chip.
8. a kind of CANFD gateway circuits for electric power steering according to claim 1, it is characterised in that：It is described
CAN communication circuit is made up of secondary circuit one, secondary circuit two and connector, one end and the MCU minimum system circuit phases of secondary circuit one
Even, the other end of secondary circuit one is connected with the CAN1 H ports of connector, CAN1 L ports, and one end of secondary circuit two is with MCU most
Mini system circuit is connected, and the other end of secondary circuit two is connected with the CAN2 H ports of connector, CAN2 L ports, connector
KL15 IN ports are divided into KL15 OUT terminal mouthful of 2 tunnels respectively with EMC filter circuit, connector and are connected, the KL31 ports of connector
Also it is connected with EMC filter circuit.
9. a kind of CANFD gateway circuits for electric power steering according to claim 8, it is characterised in that：It is described
The BAT ports of circuit chip one are connected with power source reverse connection protection circuit in secondary circuit one, and the TXD ports of circuit chip one are divided into 2
TXD1 port of the road respectively with main circuit board in test point TP3, MCU minimum system circuit is connected, the RXD ports of circuit chip one
It is divided into RXD1 of 2 tunnels respectively with main circuit board in test point TP2, MCU minimum system circuit to be connected, the SCSN ends of circuit chip one
Mouth be divided into 2 tunnels respectively with one end of resistance R9, one end of resistance R10 is connected, the other end and the MCU minimum system circuits of resistance R9
The TJA1145 SCSN1 ports of middle main circuit board are connected, the other end and the main circuit board in MCU minimum system circuits of resistance R10
TJA1051 S1 ports be connected, the TJA11475 of the SCK ports of circuit chip one and main circuit board in MCU minimum system circuits
CLK1 ports are connected, and in the SDO ports of circuit chip one and MCU minimum system circuits the TJA1145 SOMI1 ends of main circuit board
Mouth is connected, and the SDI ports of circuit chip one are divided into 2 tunnels, and one end respectively with resistance R13, one end of resistance R14 are connected, resistance
The other end of R13 is connected with the TJA1145 SIMO1 of main circuit board in MCU minimum system circuits, the other end and 5v of resistance R14
Power supply is connected, and the VCC ports of circuit chip one are connected with 5v power supplys, the GND ports ground connection of circuit chip one, circuit chip one
WAKE ports are divided into one end respectively with resistance R5 of 2 tunnels, one end of resistance R8 and are connected, the other end and the 5v power supply phases of resistance R5
Even, the other end ground connection of resistance R8, the CANH ports of circuit chip one are divided into 2 tunnels, respectively with test point TP4, common mode inductance L2
3 pin be connected, 2 pin of common mode inductance L2 be divided into 5 tunnels respectively with one end of resistance R6, it is one end of electric capacity C19, test point TP1, quiet
1 pin of electricity protection diode U4, the CAN1 H ports of connector are connected, the other end ground connection of electric capacity C19, the other end of resistance R6
One end with resistance R7 is connected, and the other end of resistance R7 is divided into one end, one end phase of resistance R12 of 2 tunnels respectively with electric capacity C21
Even, the other end ground connection of electric capacity C21, the other end of resistance R12 is connected with one end of resistance R11, and the other end of resistance R11 is divided into
5 tunnels, 1 pin, one end of electric capacity C22, test point TP6,2 pin, the connector of electrostatic protection diode U4 respectively with common mode inductance L2
CAN1 L ports be connected, the other end of electric capacity C22 ground connection, the 3 pin ground connection of electrostatic protection diode U4, the 4 of common mode inductance L2
Pin is connected with the CANL ports of test point TP5, circuit chip one, and the VIO ports of circuit chip one are connected with 5v power supplys, 5v electricity
Source is grounded after being connected with electric capacity C20.
10. a kind of CANFD gateway circuits for electric power steering according to claim 8, it is characterised in that：It is described
BAT ports in secondary circuit two in circuit chip two are connected with power source reverse connection protection circuit, the TXD ports in circuit chip two point
TXD2 for two-way respectively with main circuit board in test point TP9, MCU minimum system circuit is connected, the RXD ports of circuit chip two
It is divided into RXD2 of 2 tunnels respectively with main circuit board in test point TP8, MCU minimum system circuit to be connected, the SCSN ends of circuit chip two
Mouth be divided into 2 tunnels respectively with one end of resistance R20, one end of resistance R21 is connected, the other end and the MCU minimum systems electricity of resistance R20
The TJA1145 SCSN2 ports of main circuit board are connected in road, the other end and the main circuit in MCU minimum system circuits of resistance R21
The TJA1051 S2 ports of plate are connected, main circuit board in the SCK ports of circuit chip two and MCU minimum system circuits
TJA11475 CLK2 ports are connected, the TJA1145 of main circuit board in the SDO ports of circuit chip two and MCU minimum system circuits
SOMI2 ports are connected, and the SDI ports of circuit chip two are divided into 2 tunnels, one end respectively with resistance R24, one end phase of resistance R25
Even, the other end of resistance R24 is connected with the TJA1145 SIMO2 of main circuit board in MCU minimum system circuits, and resistance R25's is another
One end is connected with 5v power supplys, and the VCC ports of circuit chip two are connected with 5v power supplys, the GND ports ground connection of circuit chip two, circuit
The EN PWR ports of chip two are connected with power circuit, and the WAKE ports of circuit chip two are divided into 2 tunnels respectively with the one of resistance R16
End, one end of resistance R19 are connected, and the other end of resistance R16 is connected with 5v power supplys, the other end ground connection of resistance R19, circuit chip
One CANH ports are divided into 2 tunnels, and 3 pin with test point TP10, common mode inductance L3 are connected respectively, and 2 pin of common mode inductance L3 are divided into 5
Road respectively with one end of resistance R17, one end of electric capacity C29, test point TP7,1 pin of electrostatic protection diode U6, connector
CAN2 H ports are connected, and the other end ground connection of electric capacity C29, the other end of resistance R17 is connected with one end of resistance R18, resistance R18
The other end be divided into one end respectively with electric capacity C31 of 2 tunnels, one end of resistance R23 and be connected, the other end ground connection of electric capacity C31, resistance
The other end of R23 is connected with one end of resistance R22, the other end of resistance R22 be divided into 5 tunnels respectively with 1 pin, the electricity of common mode inductance L3
One end of appearance C32, test point TP12,2 pin of electrostatic protection diode U6, the CAN2 L ports of connector are connected, electric capacity C32's
The other end is grounded, 3 pin of electrostatic protection diode U6 ground connection, 4 pin of common mode inductance L3 and test point TP11, circuit chip two
CANL ports are connected, and the VIO ports of circuit chip two are connected with 5v power supplys, and 5v power supplys are grounded after being connected with electric capacity C30.
A kind of 11. CANFD gateway circuits for electric power steering according to claim 1, it is characterised in that：It is described
Power source reverse connection protection circuit is made up of diode D1 and TVS diode D2, and the anode of diode D1 is connected with EMC filter circuit,
The negative electrode of diode D1 is divided into 3 tunnels, and negative electrode respectively with TVS diodes D2, power circuit, CAN communication circuit are connected, TVS bis-
The plus earth of pole pipe D2.
A kind of 12. CANFD gateway circuits for electric power steering according to claim 1, it is characterised in that：It is described
One end of electric capacity C37 is divided into one end, one end of resistance R27, thermistor of 4 tunnels respectively with resistance R26 in temperature sensing circuit
The MCU Temp ports of main circuit board are connected in one end, the MCU minimum system circuits of NTC1, and the other end of resistance R26 is with MCU most
The AVCC ports of main circuit board are connected in mini system circuit, the other end of thermistor NTC1 be divided into 3 tunnels respectively with ground, resistance
The other end of R27, the other end of electric capacity C37 are connected.
A kind of 13. CANFD gateway circuits for electric power steering according to claim 2, it is characterised in that：It is described
The auspicious Sa RH850F1K series of model of main circuit board.
A kind of 14. CANFD gateway circuits for electric power steering according to claim 7, it is characterised in that：It is described
The model TPS7B6750QPWPR of power supply chip.
A kind of 15. CANFD gateway circuits for electric power steering according to claim 8, it is characterised in that：It is described
Connector is TJA1145 chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621201626.XU CN206264963U (en) | 2016-11-08 | 2016-11-08 | A kind of CANFD gateway circuits for electric power steering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621201626.XU CN206264963U (en) | 2016-11-08 | 2016-11-08 | A kind of CANFD gateway circuits for electric power steering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206264963U true CN206264963U (en) | 2017-06-20 |
Family
ID=59038547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621201626.XU Active CN206264963U (en) | 2016-11-08 | 2016-11-08 | A kind of CANFD gateway circuits for electric power steering |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206264963U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106427836A (en) * | 2016-11-08 | 2017-02-22 | 博世华域转向系统有限公司 | CANFD gateway circuit for electric power-assisted steering |
-
2016
- 2016-11-08 CN CN201621201626.XU patent/CN206264963U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106427836A (en) * | 2016-11-08 | 2017-02-22 | 博世华域转向系统有限公司 | CANFD gateway circuit for electric power-assisted steering |
| CN106427836B (en) * | 2016-11-08 | 2019-01-04 | 博世华域转向系统有限公司 | A kind of CANFD gateway circuit for electric power steering |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103770728B (en) | Based on the communicating circuit used for electric vehicle of CAN | |
| CN206264963U (en) | A kind of CANFD gateway circuits for electric power steering | |
| CN105763621A (en) | New energy vehicle monitoring system based on 3G network and GPS/Beidou positioning technology | |
| Barmada et al. | Power line communication integrated in a Wireless Power Transfer system: A feasibility study | |
| CN205553953U (en) | Composite power source pure electric vehicles's vehicle control unit | |
| CN106427836B (en) | A kind of CANFD gateway circuit for electric power steering | |
| CN207022021U (en) | CAN communicating circuit for electric automobile | |
| CN104122816B (en) | Electric vehicle high-speed digital input circuit | |
| CN207388881U (en) | A kind of battery management system CAN communication circuit | |
| CN207719863U (en) | A kind of band CAN communication battery-operated motor cycle class protection board | |
| CN103179012A (en) | FlexRay network node adopting iCoupler magnetic isolation protecting measures | |
| CN205003537U (en) | Train communication equipment | |
| WO2015143625A1 (en) | Battery, communications terminal, and communications system | |
| CN202716822U (en) | Signal collecting and transmitting device for multiple automobile switches | |
| CN114291016A (en) | Whole vehicle power supply network protection system | |
| CN204288210U (en) | A kind of onboard system based on USB (universal serial bus) isolation | |
| CN208739138U (en) | A kind of car networking terminal for supporting CAN FD and Ethernet | |
| CN207965557U (en) | A kind of CAN interface circuit that interference rejection ability is strong | |
| CN203455388U (en) | Current and temperature monitoring system applied to industrial environment | |
| CN205540217U (en) | Analog input device | |
| CN110650068A (en) | Communication circuit and communication test method of remote controller performance test device | |
| CN215219505U (en) | On-vehicle OBD supervisory equipment of multiprotocol extensible interface | |
| CN205304236U (en) | 485 protection circuit | |
| CN210380882U (en) | Communication circuit of remote controller performance testing device | |
| CN209787193U (en) | LIN communication test auxiliary equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |