CN106427836B - A kind of CANFD gateway circuit for electric power steering - Google Patents
A kind of CANFD gateway circuit for electric power steering Download PDFInfo
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- CN106427836B CN106427836B CN201610977979.7A CN201610977979A CN106427836B CN 106427836 B CN106427836 B CN 106427836B CN 201610977979 A CN201610977979 A CN 201610977979A CN 106427836 B CN106427836 B CN 106427836B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
- B60R16/0232—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
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- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Small-Scale Networks (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The present invention relates to field of circuit technology; it is concretely a kind of CANFD gateway circuit for electric power steering; the present invention monitors the temperature information in entire circuit using temperature sensing circuit; power source reverse connection protection circuit is devised simultaneously; prevent impact failure of the voltage to gateway hardware circuit; the present invention is integrated and has been improved to entire gateway circuit, allows to easily apply in various types of automobiles.
Description
Technical field
The present invention relates to field of circuit technology, are concretely a kind of CANFD gateway circuits for electric power steering.
Background technique
EPS system mainly contains four driving unit, upper tubing string, jackshaft and manual steering gear parts, and gateway is just
It is the intermediate device as connection EPS system and vehicle network.The gateway in vehicle is the circuit managed using subregion at present
It is attached feedback, does so and significantly increases the layout of circuit in vehicle, and is easy to appear that power source temperature is excessively high to be burnt
Bad situation causes vehicle to be paralysed once power supply is burned the disconnection that will result in vehicle network and EPS system, threatens driving
Safety.
The present invention devises a kind of CANFD gateway electricity detect with power source temperature protection power source of integration thus
Road.
Summary of the invention
The present invention breaches the problem of the prior art, and devise a kind of integration has detection power source temperature protection power source
The CANFD gateway circuit of function.
In order to achieve the above object, the present invention devises a kind of CANFD gateway circuit for electric power steering, packet
It includes: MCU minimum system circuit, EMC filter circuit, power circuit, CAN communication circuit, power source reverse connection protection circuit, temperature detection
Circuit, it is characterised in that: MCU minimum system circuit is connected with power circuit, temperature sensing circuit, CAN communication circuit respectively, electricity
Source circuit is divided into 2 tunnels again and is connected respectively with CAN communication circuit, power source reverse connection protection circuit, 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 system circuit is by main circuit board, crystal oscillating circuit, MCU debugging interface circuit and electric source filter circuit
Composition, the JP0 TDI of the wherein main circuit board of main circuit board, JP1 TDO, JP2 TCK, the port JP5 TRDY respectively with MCU tune
It tries interface circuit to be connected, the port EVCC, AVCC of main circuit board is connected separately with electric source filter circuit, X1, X2 of main circuit board
Port is connected with crystal oscillating circuit, the RESET interface of main circuit board be divided into 2 tunnels respectively with power circuit, MCU debugging interface circuit phase
Even, TXD1, RXD1 of main circuit board, TXD2, RXD2, TJA1145 SOMI1, TJA1145 SIMO1, TJA1145 CLK1,
TJA1145 SCSN1、TJA1051 S1、TJA1051 S2、TJA1145 SCSN2、TJA1145 SIMO2、TJA1145 CLK2、
The port TJA1145 SOMI2 is connected with CAN communication circuit, and the port MCUTemp of main circuit board is connected with temperature sensing circuit, main
The port AWOVSS of circuit board is divided into 2 tunnels and is connected respectively with the one end on ground, capacitor C34, the other end of capacitor C34 then with main electricity
The port AWOVAL of road plate is connected, and the port the EVSS ground connection of main circuit board, the port A0VSS of main circuit board is also grounded, main circuit
The port ISOVSS of plate is divided into 2 tunnels and is connected respectively with the one end on ground, capacitor C33, the other end of capacitor C33 and main circuit board
The port ISOVCL is connected, and FLMD0 points of main circuit board are connected with one end of resistance R4, MCU debugging interface circuit respectively for 2 tunnels,
The other end of resistance R4 is grounded.
The crystal oscillating circuit is made of capacitor C35, capacitor C36 and crystal oscillator Y1, one end of crystal oscillator Y1 be divided into 2 tunnels respectively with master
The port X2 of circuit board, capacitor C35 one end be connected, the other end of crystal oscillator Y1 be divided into 2 tunnels respectively with the port X1 of main circuit board,
One end of capacitor C36 is connected, and the other end of capacitor C35 is connected and is grounded with the other end of capacitor C36.
The port TCK/FPCK of debugging circuit board in the MCU debugging interface circuit and the end JP2 TCK of main circuit board
Mouth is connected, and the port TDO/FPDT of debugging circuit board is connected with the JP1 TDO port of main circuit board, the TDI/ of debugging circuit board
The port FPDT is divided into 2 tunnels and is connected respectively with one end of the JP0 TDI port of main circuit board, reserved resistance R15, reserves resistance R15
Other end ground connection, the port RDY of debugging circuit board is connected with the port JP5 TRDY of main circuit board, debugging circuit board
The port RESET is connected with the port RESET of main circuit board, the port the GND ground connection of debugging circuit board, the FLMD0 of debugging circuit board
Port is connected with the port FLMD0 of main circuit board, and the vdd terminal mouth of debugging circuit board is connected with 5v power supply.
In the electric source filter circuit port AVCC be divided into 9 tunnels respectively with the port AVCC of main circuit board, 5v power supply, capacitor
One end, the port EVCC of main circuit board, one end of capacitor C26, one end of capacitor C27, one end of capacitor C28, capacitor of C23
One end of one end of C24, capacitor C25 is connected, and the other end of capacitor C23 is connected with ground, and the other end of capacitor C26 is divided into 5 tunnels
Respectively with the other end on ground, capacitor C27, the other end phase of the other end of capacitor C28, the other end of capacitor C24, capacitor C25
Even.
One end of inductance L1 is divided into 5 tunnels in the EMC filter circuit, respectively with one end of capacitor C2, capacitor C3 one end,
One end of capacitor C4, one end of capacitor C5, CAN communication circuit are connected, and the other end of capacitor C2 is connected with one end of capacitor C16,
The other end of capacitor C3 is connected with one end of capacitor C17, and the other end of capacitor C4 is connected with one end of capacitor C18, capacitor C5's
The other end is connected with the other end of capacitor C11, the other end of inductance L1 is divided into 5 tunnels, respectively with one end of capacitor C6, capacitor C7
One end, one end of capacitor C8, one end of electrolytic capacitor C9, power source reverse connection protection circuit are connected, the other end and capacitor of capacitor C6
One end of C12 is connected, and the other end of capacitor C7 is connected with one end of capacitor C13, the other end of capacitor C8 and one end of capacitor C14
Be connected, point solution capacitor C9 the other end be divided into 9 tunnels respectively with ground, the other end of capacitor C14, the other end of capacitor C13, capacitor
The other end of C12, the other end of capacitor C11, the other end of capacitor C18, the other end of capacitor C17, capacitor C16 the other end,
CAN communication circuit is connected.
The port RESET of power supply chip is divided into 2 tunnels in the power circuit, respectively with the RESET of MCU minimum system circuit
Port, one end of resistance R1 are connected, and the other end of resistance R1 is connected with 5v power supply, the port DELAY of power supply chip and capacitor C10
One end be connected, the other end of capacitor C10 ground connection, the port VOUT of power supply chip is divided into 2 tunnels, respectively with 5v power supply, capacitor C15
One end be connected, the other end of capacitor C15 is divided into 2 tunnels and is connected respectively with the port GND1 of ground, power supply chip, power supply chip
The port VIN is divided into 2 tunnels, is connected respectively with one end of power source reverse connection protection circuit, capacitor C1, the other end ground connection of capacitor C1, electricity
The port EN of source chip is divided into 2 tunnels and is connected respectively with one end of one end of resistance R2, resistance R3, the other end and 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 port the GND2 ground connection of power supply chip.
The CAN communication circuit is made of secondary circuit one, secondary circuit two and connector, and one end of secondary circuit one and MCU are most
Mini system circuit is connected, and the other end of secondary circuit one is connected with the port CAN1 H of connector, the port CAN1 L, secondary circuit two
One end is connected with MCU minimum system circuit, CAN2 H port of the other end of secondary circuit two with connector, the port CAN2 L phase
Even, the port KL15 IN of connector is divided into 2 tunnels and is connected respectively with the KL15 OUT terminal mouth of EMC filter circuit, connector, patches
The port KL31 of part is also connected with EMC filter circuit.
The port BAT of circuit chip one is connected with power source reverse connection protection circuit in the secondary circuit one, circuit chip one
The port TXD is divided into 2 tunnels and is connected respectively with the port TXD1 of main circuit board in test point TP3, MCU minimum system circuit, circuit core
The port RXD of piece one is divided into 2 tunnels and is connected respectively with the RXD1 of main circuit board in test point TP2, MCU minimum system circuit, circuit
The port SCSN of chip one is divided into the one end of 2 tunnels respectively with resistance R9, and one end of resistance R10 is connected, the other end of resistance R9 with
The port TJA1145 SCSN1 of main circuit board is connected in MCU minimum system circuit, the other end of resistance R10 and MCU minimum system
The port TJA1051 S1 of main circuit board is connected in system circuit, main in the port SCK of circuit chip one and MCU minimum system circuit
The port TJA11475 CLK1 of circuit board is connected, main circuit board in the port SDO of circuit chip one and MCU minimum system circuit
The port TJA1145 SOMI1 be connected, the port SDI of circuit chip one is divided into 2 tunnels, respectively with one end of 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 circuit,
The other end of resistance R14 is connected with 5v power supply, and the port VCC of circuit chip one is connected with 5v power supply, the end GND of circuit chip one
Mouth ground connection, the port WAKE of circuit chip one are divided into 2 tunnels and are connected respectively with one end of one end of resistance R5, resistance R8, resistance R5
The other end be connected with 5v power supply, the other end of resistance R8 ground connection, the port CANH of circuit chip one is divided into 2 tunnels, respectively with survey
Pilot TP4,3 feet of common mode inductance L2 are connected, and 2 feet of common mode inductance L2 are divided into the one end of 5 tunnels respectively with resistance R6, capacitor C19
One end, test point TP1,1 foot of electrostatic protection diode U4, connector the port CAN1 H be connected, the other end of capacitor C19
Ground connection, the other end of resistance R6 are connected with one end of resistance R7, and the other end of resistance R7 is divided into one of 2 tunnels respectively with capacitor C21
End, one end of resistance R12 are connected, and the other end ground connection of capacitor C21, the other end of resistance R12 is connected with one end of resistance R11,
The other end of resistance R11 be divided into 5 tunnels respectively with 1 foot of common mode inductance L2, one end of capacitor C22, test point TP6, electrostatic protection
2 feet of diode U4, the port CAN1 L of connector are connected, the other end ground connection of capacitor C22, and the 3 of electrostatic protection diode U4
Foot ground connection, 4 feet of common mode inductance L2 are connected with the port CANL of test point TP5, circuit chip one, the VIO of circuit chip one
Port is connected with 5v power supply, and 5v power supply is grounded after connecting with capacitor C20.
The port BAT in the secondary circuit two in circuit chip two is connected with power source reverse connection protection circuit, circuit chip two
In the port TXD be divided into two-way and be connected respectively with the TXD2 of main circuit board in test point TP9, MCU minimum system circuit, circuit core
The port RXD of piece two is divided into 2 tunnels and is connected respectively with the RXD2 of main circuit board in test point TP8, MCU minimum system circuit, circuit
The port SCSN of chip two is divided into the one end of 2 tunnels respectively with resistance R20, and one end of resistance R21 is connected, the other end of resistance R20
It is connected with the port TJA1145 SCSN2 of main circuit board in MCU minimum system circuit, the other end and MCU of resistance R21 is minimum
The port TJA1051 S2 of main circuit board is connected in circuit system, in the port SCK of circuit chip two and MCU minimum system circuit
The port TJA11475 CLK2 of main circuit board is connected, main circuit in the port SDO of circuit chip two and MCU minimum system circuit
The port TJA1145 SOMI2 of plate is connected, and the port SDI of circuit chip two is divided into 2 tunnels, respectively with one end of 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 circuit,
The other end of resistance R25 is connected with 5v power supply, and the port VCC of circuit chip two is connected with 5v power supply, the end GND of circuit chip two
Mouthful ground connection, the port EN PWR of circuit chip two is connected with power circuit, the port WAKE 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 supply, another termination of resistance R19
The port CANH on ground, circuit chip one is divided into 2 tunnels, is connected respectively with 3 feet of test point TP10, common mode inductance L3, common mode inductance
2 feet of L3 are divided into the one end of 5 tunnels respectively with resistance R17, one end of capacitor C29, test point TP7, electrostatic protection diode U6 1
Foot, the port CAN2 H of connector are connected, the other end ground connection of capacitor C29, the other end of resistance R17 and one end of resistance R18
It is connected, the other end of resistance R18 is divided into 2 tunnels and is connected respectively with one end of one end of capacitor C31, resistance R23, and capacitor C31's is another
One end ground connection, 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 foot of inductance L3, one end of capacitor C32, test point TP12,2 feet of electrostatic protection diode U6, connector the port CAN2 L
It is connected, the other end ground connection of capacitor C32, the 3 feet ground connection of electrostatic protection diode U6,4 feet and test point of common mode inductance L3
TP11, circuit chip two the port CANL be connected, the port VIO of circuit chip two is connected with 5v power supply, 5v power supply and capacitor
It is grounded after C30 series connection.
The power source reverse connection protection circuit is made of diode D1 and TVS diode D2, and the anode and EMC of diode D1 is filtered
Wave circuit be connected, the cathode of diode D1 is divided into 3 tunnels, respectively with the cathode of TVS diode D2, power circuit, CAN communication circuit
It is connected, the plus earth of TVS diode D2.
In the temperature retrieval circuit one end of capacitor C37 be divided into 4 tunnels respectively with one end of resistance R26, resistance R27 one
End, one end of thermistor NTC1, the port MCU Temp of main circuit board is connected in MCU minimum system circuit, and resistance R26's is another
One end is connected with the port AVCC of main circuit board in MCU minimum system circuit, and the other end of thermistor NTC1 is divided into 3 tunnels difference
It is connected with the other end of ground, the other end of resistance R27, capacitor C37.
The auspicious Sa RH850F1K series of the model of the main circuit board.
The model TPS7B6750QPWPR of the power supply chip.
The connector is TJA1145 chip.
Compared with prior art, the present invention monitoring the temperature information in entire circuit using temperature sensing circuit, set simultaneously
Power source reverse connection protection circuit is counted, it is therefore prevented that impact failure of the voltage to gateway hardware circuit, the present invention is to entire gateway circuit
It is integrated and has been improved, allow to easily apply in various types of automobiles.
Detailed description of the invention
Fig. 1 is the MCU minimum system circuit in the present invention.
Fig. 2 is the EMC filter circuit in the present invention.
Fig. 3 is the power circuit in the present invention.
Fig. 4 is the CAN communication circuit in the present invention.
Fig. 5 is the power source reverse connection protection circuit in the present invention.
Fig. 6 is the temperature sensing circuit in the present invention.
Fig. 7 is the link schematic diagram of the present invention in specific implementation.
Specific embodiment
The present invention is described further in conjunction with attached drawing.
Referring to Fig. 1 ~ Fig. 7, the present invention devises a kind of CANFD gateway circuit for electric power steering, comprising: MCU
Minimum system circuit, EMC filter circuit, power circuit, CAN communication circuit, power source reverse connection protection circuit, temperature sensing circuit,
MCU minimum system circuit is connected with power circuit, temperature sensing circuit, CAN communication circuit respectively, and power circuit is divided into 2 tunnels again
It is connected respectively with CAN communication circuit, power source reverse connection protection circuit, power source reverse connection protection circuit is also logical with EMC filter circuit, CAN
It interrogates circuit to be connected, EMC filter circuit is connected with CAN communication circuit.
MCU minimum system circuit is by main circuit board, crystal oscillating circuit, MCU debugging interface circuit and power filter in the present invention
Circuit composition, the JP0 TDI of the wherein main circuit board of main circuit board, JP1 TDO, JP2 TCK, the port JP5 TRDY respectively with
MCU debugging interface circuit is connected, and the port EVCC, AVCC of main circuit board is connected separately with electric source filter circuit, main circuit board
The port X1, X2 is connected with crystal oscillating circuit, the RESET interface of main circuit board be divided into 2 tunnels respectively with power circuit, MCU debugging interface
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, the port TJA1145 SOMI2 are connected with CAN communication circuit, the port MCUTemp and the temperature sensing circuit phase of main circuit board
Even, the port AWOVSS of main circuit board is divided into 2 tunnels and is connected respectively with the one end on ground, capacitor C34, and the other end of capacitor C34 is then
It is connected with the port AWOVAL of main circuit board, the port the EVSS ground connection of main circuit board, the port A0VSS of main circuit board is also grounded,
The port ISOVSS of main circuit board is divided into 2 tunnels and is connected respectively with the one end on ground, capacitor C33, the other end of capacitor C33 and main electricity
The port ISOVCL of road plate is connected, FLMD0 points of main circuit board for 2 tunnels respectively with one end of resistance R4, MCU debugging interface circuit
It is connected, the other end ground connection of resistance R4.
Crystal oscillating circuit is made of capacitor C35, capacitor C36 and crystal oscillator Y1 in the present invention, and one end of crystal oscillator Y1 is divided into 2 tunnels difference
Be connected with one end of the port X2 of main circuit board, capacitor C35, the other end of crystal oscillator Y1 be divided into 2 tunnels respectively with the X1 of main circuit board
Port, one end of capacitor C36 are connected, and the other end of capacitor C35 is connected and is grounded with the other end of capacitor C36.
The port TCK/FPCK of debugging circuit board in the MCU debugging interface circuit and the end JP2 TCK of main circuit board
Mouth is connected, and the port TDO/FPDT of debugging circuit board is connected with the JP1 TDO port of main circuit board, the TDI/ of debugging circuit board
The port FPDT is divided into 2 tunnels and is connected respectively with one end of the JP0 TDI port of main circuit board, reserved resistance R15, reserves resistance R15
Other end ground connection, the port RDY of debugging circuit board is connected with the port JP5 TRDY of main circuit board, debugging circuit board
The port RESET is connected with the port RESET of main circuit board, the port the GND ground connection of debugging circuit board, the FLMD0 of debugging circuit board
Port is connected with the port FLMD0 of main circuit board, and the vdd terminal mouth of debugging circuit board is connected with 5v power supply.
In the present invention in electric source filter circuit the port AVCC be divided into 9 tunnels respectively with the port AVCC of main circuit board, 5v power supply,
One end, the port EVCC of main circuit board, one end of capacitor C26, one end of capacitor C27, one end of capacitor C28, electricity of capacitor C23
Hold one end of C24, one end of capacitor C25 is connected, and the other end of capacitor C23 is connected with ground, and the other end of capacitor C26 is divided into 5
The road other end with ground, capacitor C27 respectively, the other end of capacitor C28, the other end of capacitor C24, capacitor C25 the other end
It is connected.
One end of inductance L1 is divided into 5 tunnels in EMC filter circuit in the present invention, respectively with one end of capacitor C2, capacitor C3
One end, one end of capacitor C4, one end of capacitor C5, CAN communication circuit are connected, the other end of capacitor C2 and one end of capacitor C16
It is connected, the other end of capacitor C3 is connected with one end of capacitor C17, and the other end of capacitor C4 is connected with one end of capacitor C18, capacitor
The other end of C5 is connected with the other end of capacitor C11, and the other end of inductance L1 is divided into 5 tunnels, respectively with one end of capacitor C6, capacitor
One end of C7, one end of capacitor C8, one end of electrolytic capacitor C9, power source reverse connection protection circuit be connected, the other end of capacitor C6 with
One end of capacitor C12 is connected, and the other end of capacitor C7 is connected with one end of capacitor C13, and the other end of capacitor C8 is with capacitor C14's
One end be connected, point solution capacitor C9 the other end be divided into 9 tunnels respectively with ground, the other end of capacitor C14, capacitor C13 the other end,
The other end of capacitor C12, the other end of capacitor C11, the other end of capacitor C18, the other end of capacitor C17, capacitor C16 it is another
End, CAN communication circuit are connected.
The port RESET of power supply chip is divided into 2 tunnels in the power circuit, respectively with the RESET of MCU minimum system circuit
Port, one end of resistance R1 are connected, and the other end of resistance R1 is connected with 5v power supply, the port DELAY of power supply chip and capacitor C10
One end be connected, the other end of capacitor C10 ground connection, the port VOUT of power supply chip is divided into 2 tunnels, respectively with 5v power supply, capacitor C15
One end be connected, the other end of capacitor C15 is divided into 2 tunnels and is connected respectively with the port GND1 of ground, power supply chip, power supply chip
The port VIN is divided into 2 tunnels, is connected respectively with one end of power source reverse connection protection circuit, capacitor C1, the other end ground connection of capacitor C1, electricity
The port EN of source chip is divided into 2 tunnels and is connected respectively with one end of one end of resistance R2, resistance R3, the other end and 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 port the GND2 ground connection of power supply chip.
The CAN communication circuit is made of secondary circuit one, secondary circuit two and connector, and one end of secondary circuit one and MCU are most
Mini system circuit is connected, and the other end of secondary circuit one is connected with the port CAN1 H of connector, the port CAN1 L, secondary circuit two
One end is connected with MCU minimum system circuit, CAN2 H port of the other end of secondary circuit two with connector, the port CAN2 L phase
Even, the port KL15 IN of connector is divided into 2 tunnels and is connected respectively with the KL15 OUT terminal mouth of EMC filter circuit, connector, patches
The port KL31 of part is also connected with EMC filter circuit.
The port BAT of circuit chip one is connected with power source reverse connection protection circuit in secondary circuit one in the present invention, circuit chip
One port TXD is divided into 2 tunnels and is connected respectively with the port TXD1 of main circuit board in test point TP3, MCU minimum system circuit, electricity
The port RXD of road chip one is divided into 2 tunnels and is connected respectively with the RXD1 of main circuit board in test point TP2, MCU minimum system circuit,
The port SCSN of circuit chip one is divided into the one end of 2 tunnels respectively with resistance R9, and one end of resistance R10 is connected, and resistance R9's is another
End is connected with the port TJA1145 SCSN1 of main circuit board in MCU minimum system circuit, and the other end and MCU of resistance R10 is most
The port TJA1051 S1 of main circuit board is connected in mini system circuit, the port SCK of circuit chip one and MCU minimum system circuit
The port TJA11475 CLK1 of middle main circuit board is connected, main electricity in the port SDO of circuit chip one and MCU minimum system circuit
The port TJA1145 SOMI1 of road plate is connected, and the port SDI of circuit chip one is divided into 2 tunnels, respectively with one end of resistance R13, electricity
The one end for hindering R14 is connected, the TJA1145 SIMO1 phase of the other end and main circuit board in MCU minimum system circuit of resistance R13
Even, the other end of resistance R14 is connected with 5v power supply, and the port VCC of circuit chip one is connected with 5v power supply, circuit chip one
The port GND ground connection, the port WAKE of circuit chip one are divided into 2 tunnels and are connected respectively with one end of one end of resistance R5, resistance R8, electricity
The other end of resistance R5 is connected with 5v power supply, and the other end ground connection of resistance R8, the port CANH of circuit chip one is divided into 2 tunnels, respectively
It is connected with 3 feet of test point TP4, common mode inductance L2,2 feet of common mode inductance L2 are divided into the one end of 5 tunnels respectively with resistance R6, capacitor
One end, test point TP1,1 foot of electrostatic protection diode U4, the port CAN1 H of connector of C19 is connected, and capacitor C19's is another
One end ground connection, 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 capacitor C21
One end, resistance R12 one end be connected, the other end of capacitor C21 ground connection, one end phase of the other end and resistance R11 of resistance R12
Even, it is anti-with 1 foot of common mode inductance L2, one end of capacitor C22, test point TP6, electrostatic respectively to be divided into 5 tunnels for the other end of resistance R11
The port CAN1 L of 2 feet, connector that protect diode U4 is connected, the other end ground connection of capacitor C22, electrostatic protection diode U4's
3 feet ground connection, 4 feet of common mode inductance L2 are connected with the port CANL of test point TP5, circuit chip one, the VIO of circuit chip one
Port is connected with 5v power supply, and 5v power supply is grounded after connecting with capacitor C20.
The port BAT in the present invention in secondary circuit two in circuit chip two is connected with power source reverse connection protection circuit, circuit core
The port TXD in piece two is divided into two-way and is connected respectively with the TXD2 of main circuit board in test point TP9, MCU minimum system circuit, electricity
The port RXD of road chip two is divided into 2 tunnels and is connected respectively with the RXD2 of main circuit board in test point TP8, MCU minimum system circuit,
The port SCSN of circuit chip two is divided into the one end of 2 tunnels respectively with resistance R20, and one end of resistance R21 is connected, and resistance R20's is another
One end is connected with the port TJA1145 SCSN2 of main circuit board in MCU minimum system circuit, the other end and MCU of resistance R21
The port TJA1051 S2 of main circuit board is connected in minimum system circuit, the port SCK of circuit chip two and MCU minimum system electricity
The port TJA11475 CLK2 of main circuit board is connected in road, main in the port SDO of circuit chip two and MCU minimum system circuit
The port TJA1145 SOMI2 of circuit board is connected, and the port SDI of circuit chip two is divided into 2 tunnels, respectively with one end of resistance R24,
One end of resistance R25 is connected, the TJA1145 SIMO2 phase of the other end and main circuit board in MCU minimum system circuit of resistance R24
Even, the other end of resistance R25 is connected with 5v power supply, and the port VCC of circuit chip two is connected with 5v power supply, circuit chip two
The port GND ground connection, the port EN PWR of circuit chip two are connected with power circuit, and the port WAKE of circuit chip two is divided into 2 tunnels
It is connected respectively with one end of one end of resistance R16, resistance R19, the other end of resistance R16 is connected with 5v power supply, and resistance R19's is another
One end ground connection, the port CANH of circuit chip one are divided into 2 tunnels, are connected respectively with 3 feet of test point TP10, common mode inductance L3, altogether
2 feet of mould inductance L3 are divided into the one end of 5 tunnels respectively with resistance R17, one end, test point TP7, two pole of electrostatic protection of capacitor C29
1 foot of pipe U6, the port CAN2 H of connector are connected, the other end ground connection of capacitor C29, the other end and resistance R18 of resistance R17
One end be connected, the other end of resistance R18 is divided into 2 tunnels and is connected respectively with one end of one end of capacitor C31, resistance R23, capacitor
The other end of C31 is grounded, and 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 difference
With 1 foot of common mode inductance L3, one end of capacitor C32, test point TP12,2 feet of electrostatic protection diode U6, connector CAN2
The port L is connected, the other end ground connection of capacitor C32, the 3 feet ground connection of electrostatic protection diode U6,4 feet of common mode inductance L3 and test
Point TP11, circuit chip two the port CANL be connected, the port VIO of circuit chip two is connected with 5v power supply, 5v power supply and electricity
Hold C30 series connection to be grounded later.
Power source reverse connection protection circuit is made of diode D1 and TVS diode D2 in the present invention, the anode of diode D1 with
EMC filter circuit is connected, and the cathode of diode D1 is divided into 3 tunnels, logical with the cathode, power circuit, CAN of TVS diode D2 respectively
It interrogates circuit to be connected, the plus earth of TVS diode D2.
In the present invention temperature retrieval circuit in capacitor C37 one end be divided into 4 tunnels respectively with one end of resistance R26, resistance R27
One end, one end of thermistor NTC1, the port MCU Temp of main circuit board is connected in MCU minimum system circuit, resistance R26
The other end be connected with the port AVCC of main circuit board in MCU minimum system circuit, the other end of thermistor NTC1 is divided into 3 tunnels
It is connected respectively with the other end of ground, the other end of resistance R27, capacitor C37.
The auspicious Sa RH850F1K series of the model of main circuit board, security level ASILB, highest dominant frequency are in the present invention
120MHz, have 6 channels CAN, support CANFD function, highest communication speed up to 5Mbps, AD sampling precision 12bit, and
And there is hardware security module (HSM).
The model TPS7B6750QPWPR of power supply chip, highest can bear the voltage of 40v in the present invention, and maximum output is
450mA electric current, and can be in input voltage to provide stable 5v voltage when 6v ~ 18v, while there is Thermal shutdown and short circuit to protect
Protective function.
Connector is TJA1145 chip in the present invention, and communication speed reaches as high as 2Mbuad, and has less electromagnetism
Radiation and higher anti-electromagnetic interference capability.
Referring to Fig. 7, in specific implementation, it is divided into the i.e. EPS controller 5 of transmission signal 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 controller 5.
The step of sending signal conversion is as follows:
EPS controller 5 issues signal first, and signal is sent to EPS master chip 7, EPS master chip by bus transceiver A4-1
7 reception signals are simultaneously adjusted, and EPS signal adjusted is then sent to this by debugging interface 3 and bus transceiver B4-2
Invention 1, and the EPS signal after debugging is fed back to EPS master chip 7, the present invention 1 and 2 phase of power module simultaneously by debugging interface 3
Even, the present invention 1 receives startup power supply after EPS signal and is adjusted to EPS signal, and EPS signal adjusted is passed to
EPS signal is simultaneously fed back to debugging interface 3 simultaneously by vehicle 6.
The step of receiving signal conversion is as follows:
Vehicle 6 issues vehicle signal first, and vehicle signal is sent to EPS main core by the present invention 1 and bus transceiver B4-2
Vehicle signal is transferred again to debugging interface 3 and bus transceiver A4-1 by piece 7, EPS master chip 7, and debugging interface 3 believes vehicle
It number is debugged, and the vehicle signal after debugging is sent to the present invention 1 and EPS master chip 7, the present invention 1 is received by bus
After the vehicle signal that transceiver A4-1 and debugging interface 3 transmit, power supply signal is transmitted to power module 2, then by vehicle signal
Pass to EPS controller 5.
Claims (13)
1. a kind of CANFD gateway circuit for electric power steering, comprising: MCU minimum system 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 system 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；The power source reverse connection protection circuit is made of diode D1 and TVS diode D2, diode
The anode of D1 is connected with EMC filter circuit, and the cathode of diode D1 is divided into 3 tunnels, respectively with cathode, the power supply of TVS diode D2
Circuit, CAN communication circuit are connected, the plus earth of TVS diode D2；One end of capacitor C37 point in the temperature sensing circuit
It is 4 tunnels respectively and in one end of resistance R26, one end of resistance R27, one end of thermistor NTC1, MCU minimum system circuit
The port MCU Temp of main circuit board is connected, the AVCC of main circuit board in the other end and MCU minimum system circuit of resistance R26
Port be connected, the other end of thermistor NTC1 be divided into 3 tunnels respectively with ground, the other end of resistance R27, capacitor C37 it is another
End is connected.
2. a kind of CANFD gateway circuit for electric power steering according to claim 1, it is characterised in that: described
MCU minimum system circuit is made of main circuit board, crystal oscillating circuit, MCU debugging interface circuit and electric source filter circuit, main circuit board
The JP0 TDI of wherein main circuit board, JP1 TDO, JP2 TCK, the port JP5 TRDY respectively with MCU debugging interface circuit phase
Even, the port EVCC, AVCC of main circuit board is connected separately with electric source filter circuit, the port X1, X2 of main circuit board and crystal oscillator electricity
Road is connected, and the RESET interface of main circuit board is divided into 2 tunnels and is connected respectively with power circuit, MCU debugging interface circuit, 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 port MCUTemp of main circuit board is connected with temperature sensing circuit, main circuit board
The port AWOVSS is divided into 2 tunnels and is connected respectively with the one end on ground, capacitor C34, the other end of capacitor C34 then with main circuit board
The port AWOVAL is connected, and the port the EVSS ground connection of main circuit board, the port A0VSS of main circuit board is also grounded, main circuit board
The port ISOVSS is divided into 2 tunnels and is connected respectively with the one end on ground, capacitor C33, the other end of capacitor C33 and main circuit board
The port ISOVCL is connected, and FLMD0 points of main circuit board are connected with one end of resistance R4, MCU debugging interface circuit respectively for 2 tunnels,
The other end of resistance R4 is grounded.
3. a kind of CANFD gateway circuit for electric power steering according to claim 2, it is characterised in that: described
Crystal oscillating circuit is made of capacitor C35, capacitor C36 and crystal oscillator Y1, one end of crystal oscillator Y1 be divided into 2 tunnels respectively with the end X2 of main circuit board
Mouthful, one end of capacitor C35 be connected, the other end of crystal oscillator Y1 be divided into 2 tunnels respectively with the port X1 of main circuit board, capacitor C36 one
End is connected, and the other end of capacitor C35 is connected and is grounded with the other end of capacitor C36.
4. a kind of CANFD gateway circuit for electric power steering according to claim 2, it is characterised in that: described
The port TCK/FPCK of debugging circuit board in MCU debugging interface circuit is connected with the port JP2 TCK of main circuit board, debugging electricity
The port TDO/FPDT of road plate is connected with the JP1 TDO port of main circuit board, and the port TDI/FPDT of debugging circuit board is divided into 2 tunnels
It is connected respectively with one end of the JP0 TDI port of main circuit board, reserved resistance R15, reserves the other end ground connection of resistance R15, adjust
The port RDY of examination circuit board is connected with the port JP5 TRDY of main circuit board, the port RESET of debugging circuit board and main circuit board
The port RESET be connected, the port GND of debugging circuit board ground connection, the port FLMD0 of debugging circuit board and main circuit board
The port FLMD0 is connected, and the vdd terminal mouth of debugging circuit board is connected with 5v power supply.
5. a kind of CANFD gateway circuit for electric power steering according to claim 2, it is characterised in that: described
In electric source filter circuit the port AVCC be divided into 9 tunnels respectively with the port AVCC of main circuit board, 5v power supply, one end of capacitor C23, master
The port EVCC of circuit board, one end of capacitor C26, one end of capacitor C27, one end of capacitor C28, capacitor C24 one end, capacitor
One end of C25 is connected, and the other end of capacitor C23 is connected with ground, the other end of capacitor C26 be divided into 5 tunnels respectively with ground, capacitor
The other end of C27, the other end of capacitor C28, the other end of capacitor C24, the other end of capacitor C25 are connected.
6. a kind of CANFD gateway circuit for electric power steering according to claim 1, it is characterised in that: described
One end of inductance L1 is divided into 5 tunnels in EMC filter circuit, respectively with one end of capacitor C2, one end of capacitor C3, capacitor C4 one
End, one end of capacitor C5, CAN communication circuit are connected, and the other end of capacitor C2 is connected with one end of capacitor C16, and capacitor C3's is another
One end is connected with one end of capacitor C17, and the other end of capacitor C4 is connected with one end of capacitor C18, the other end and electricity of capacitor C5
Hold C11 the other end be connected, the other end of inductance L1 is divided into 5 tunnels, respectively with one end of capacitor C6, one end of capacitor C7, capacitor
One end of C8, one end of electrolytic capacitor C9, power source reverse connection protection circuit are connected, the other end of capacitor C6 and one end of capacitor C12
It is connected, the other end of capacitor C7 is connected with one end of capacitor C13, and the other end of capacitor C8 is connected with one end of capacitor C14, electrolysis
The other end of capacitor C9 be divided into 9 tunnels respectively with ground, the other end of capacitor C14, the other end of capacitor C13, capacitor C12 it is another
End, the other end of capacitor C11, the other end of capacitor C18, the other end of capacitor C17, the other end of capacitor C16, CAN communication electricity
Road is connected.
7. a kind of CANFD gateway circuit for electric power steering according to claim 1, it is characterised in that: described
The port RESET of power supply chip is divided into 2 tunnels in power circuit, respectively with the port RESET of MCU minimum system circuit, resistance R1
One end be connected, the other end of resistance R1 is connected with 5v power supply, and the port DELAY of power supply chip is connected with one end of capacitor C10,
The other end of capacitor C10 is grounded, and the port VOUT of power supply chip is divided into 2 tunnels, is connected respectively with one end of 5v power supply, capacitor C15,
The other end of capacitor C15 is divided into 2 tunnels and is connected respectively with the port GND1 of ground, power supply chip, and the port VIN of power supply chip is divided into
2 tunnels are connected with one end of power source reverse connection protection circuit, capacitor C1 respectively, the other end ground connection of capacitor C1, the end EN of power supply chip
Mouthful, it is divided into 2 tunnels and is connected respectively with one end of one end of resistance R2, resistance R3, the other end and reverse power connection the protection electricity of resistance R2
Road is connected, and the other end of resistance R3 is connected with CAN communication circuit, the port the GND2 ground connection of power supply chip.
8. a kind of CANFD gateway circuit for electric power steering according to claim 1, it is characterised in that: described
CAN communication circuit is made of secondary circuit one, secondary circuit two and connector, one end and the MCU minimum system circuit phase of secondary circuit one
Even, the other end of secondary circuit one is connected with the port CAN1 H of connector, the port CAN1 L, and one end of secondary circuit two and MCU are most
Mini system circuit is connected, and the other end of secondary circuit two is connected with the port CAN2 H of connector, the port CAN2 L, connector
The port KL15 IN is divided into 2 tunnels and is connected respectively with the KL15 OUT terminal mouth of EMC filter circuit, connector, the port KL31 of connector
Also it is connected with EMC filter circuit.
9. a kind of CANFD gateway circuit for electric power steering according to claim 8, it is characterised in that: described
The port BAT of circuit chip one is connected with power source reverse connection protection circuit in secondary circuit one, and the port TXD of circuit chip one is divided into 2
Road is connected with the port TXD1 of main circuit board in test point TP3, MCU minimum system circuit respectively, the port RXD of circuit chip one
It is divided into 2 tunnels to be connected with the RXD1 of main circuit board in test point TP2, MCU minimum system circuit respectively, the end SCSN of circuit chip one
Mouth is divided into the one end of 2 tunnels respectively with resistance R9, and one end of resistance R10 is connected, the other end and MCU minimum system circuit of resistance R9
The port TJA1145 SCSN1 of middle main circuit board is connected, main circuit board in the other end and MCU minimum system circuit of resistance R10
The port TJA1051 S1 be connected, the TJA1145 of main circuit board in the port SCK of circuit chip one and MCU minimum system circuit
The port CLK1 is connected, and in the port SDO of circuit chip one and MCU minimum system circuit the end TJA1145 SOMI1 of main circuit board
Mouth is connected, and the port SDI of circuit chip one is divided into 2 tunnels, is connected respectively with one end of one end of resistance R13, resistance R14, resistance
The other end of R13 is connected with the TJA1145 SIMO1 of main circuit board in MCU minimum system circuit, the other end and 5v of resistance R14
Power supply is connected, and the port VCC of circuit chip one is connected with 5v power supply, the port the GND ground connection of circuit chip one, circuit chip one
The port WAKE is divided into 2 tunnels and is connected respectively with one end of one end of resistance R5, resistance R8, the other end and the 5v power supply phase of resistance R5
Even, the other end of resistance R8 ground connection, the port CANH of circuit chip one are divided into 2 tunnels, respectively with test point TP4, common mode inductance L2
3 feet be connected, 2 feet of common mode inductance L2 are divided into the one end of 5 tunnels respectively with resistance R6, one end of capacitor C19, test point TP1, quiet
1 foot of electricity protection diode U4, the port CAN1 H of connector are connected, the other end ground connection of capacitor C19, the other end of resistance R6
It is connected with one end of resistance R7, the other end of resistance R7 is divided into one end phase of 2 tunnels respectively with one end of capacitor C21, resistance R12
Even, the other end ground connection of capacitor C21, the other end of resistance R12 are connected with one end of resistance R11, and the other end of resistance R11 is divided into
5 tunnels respectively with 1 foot of common mode inductance L2, one end of capacitor C22, test point TP6, electrostatic protection diode U4 2 feet, connector
The port CAN1 L be connected, the other end of capacitor C22 ground connection, the 3 feet ground connection of electrostatic protection diode U4, the 4 of common mode inductance L2
Foot is connected with the port CANL of test point TP5, circuit chip one, and the port VIO of circuit chip one is connected with 5v power supply, 5v electricity
Source is grounded after connecting with capacitor C20.
10. a kind of CANFD gateway circuit for electric power steering according to claim 8, it is characterised in that: described
The port BAT in secondary circuit two in circuit chip two is connected with power source reverse connection protection circuit, the port TXD in circuit chip two point
It is connected respectively with the TXD2 of main circuit board in test point TP9, MCU minimum system circuit for two-way, the port RXD of circuit chip two
It is divided into 2 tunnels to be connected with the RXD2 of main circuit board in test point TP8, MCU minimum system circuit respectively, the end SCSN of circuit chip two
Mouth is divided into the one end of 2 tunnels respectively with resistance R20, and one end of resistance R21 is connected, the other end and MCU the minimum system electricity of resistance R20
The port TJA1145 SCSN2 of main circuit board is connected in road, main circuit in the other end and MCU minimum system circuit of resistance R21
The port TJA1051 S2 of plate is connected, main circuit board in the port SCK of circuit chip two and MCU minimum system circuit
The port TJA1145 CLK2 is connected, the TJA1145 of main circuit board in the port SDO of circuit chip two and MCU minimum system circuit
The port SOMI2 be connected, the port SDI of circuit chip two is divided into 2 tunnels, respectively with one end phase of one end of resistance R24, resistance R25
Even, the other end of resistance R24 is connected with the TJA1145 SIMO2 of main circuit board in MCU minimum system circuit, and resistance R25's is another
One end is connected with 5v power supply, and the port VCC of circuit chip two is connected with 5v power supply, the port the GND ground connection of circuit chip two, circuit
The port EN PWR of chip two is connected with power circuit, and the port WAKE of circuit chip two is divided into one of 2 tunnels respectively with resistance R16
End, one end of resistance R19 are connected, and the other end of resistance R16 is connected with 5v power supply, the other end ground connection of resistance R19, circuit chip
One port CANH is divided into 2 tunnels, is connected respectively with 3 feet of test point TP10, common mode inductance L3, and 2 feet of common mode inductance L3 are divided into 5
Road one end with resistance R17 respectively, one end of capacitor C29, test point TP7,1 foot of electrostatic protection diode U6, connector
The port CAN2 H is connected, and the other end ground connection of capacitor C29, the other end of resistance R17 is connected with one end of resistance R18, resistance R18
The other end be divided into 2 tunnels and be connected respectively with one end of one end of capacitor C31, resistance R23, the other end ground connection of capacitor 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 foot, the electricity of common mode inductance L3
One end, test point TP12,2 feet of electrostatic protection diode U6, the port CAN2 L of connector for holding C32 are connected, capacitor C32's
Other end ground connection, the 3 feet ground connection of electrostatic protection diode U6,4 feet of common mode inductance L3 and test point TP11, circuit chip two
The port CANL is connected, and the port VIO of circuit chip two is connected with 5v power supply, and 5v power supply is grounded after connecting with capacitor C30.
11. a kind of CANFD gateway circuit for electric power steering according to claim 2, it is characterised in that: described
The auspicious Sa RH850F1K series of the model of main circuit board.
12. a kind of CANFD gateway circuit for electric power steering according to claim 7, it is characterised in that: described
The model TPS7B6750QPWPR of power supply chip.
13. a kind of CANFD gateway circuit for electric power steering according to claim 8, it is characterised in that: described
Connector is TJA1145 chip.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610977979.7A CN106427836B (en) | 2016-11-08 | 2016-11-08 | A kind of CANFD gateway circuit for electric power steering |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610977979.7A CN106427836B (en) | 2016-11-08 | 2016-11-08 | A kind of CANFD gateway circuit for electric power steering |
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| CN106427836A CN106427836A (en) | 2017-02-22 |
| CN106427836B true CN106427836B (en) | 2019-01-04 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204241944U (en) * | 2014-11-28 | 2015-04-01 | 温州大学 | A kind of power system state monitoring apparatus for electronic aeromodelling aerocraft |
| WO2015135911A1 (en) * | 2014-03-11 | 2015-09-17 | Zaptec Ip As | Power supply system for charging electric vehicles |
| CN204719192U (en) * | 2015-05-05 | 2015-10-21 | 杭州标源微电子有限公司 | A kind of single lithium battery charging management chip failure detector circuit |
| CN205647566U (en) * | 2016-04-26 | 2016-10-12 | 北京经纬恒润科技有限公司 | Controller area network gateway |
| CN206264963U (en) * | 2016-11-08 | 2017-06-20 | 博世华域转向系统有限公司 | A kind of CANFD gateway circuits for electric power steering |
-
2016
- 2016-11-08 CN CN201610977979.7A patent/CN106427836B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015135911A1 (en) * | 2014-03-11 | 2015-09-17 | Zaptec Ip As | Power supply system for charging electric vehicles |
| CN204241944U (en) * | 2014-11-28 | 2015-04-01 | 温州大学 | A kind of power system state monitoring apparatus for electronic aeromodelling aerocraft |
| CN204719192U (en) * | 2015-05-05 | 2015-10-21 | 杭州标源微电子有限公司 | A kind of single lithium battery charging management chip failure detector circuit |
| CN205647566U (en) * | 2016-04-26 | 2016-10-12 | 北京经纬恒润科技有限公司 | Controller area network gateway |
| CN206264963U (en) * | 2016-11-08 | 2017-06-20 | 博世华域转向系统有限公司 | A kind of CANFD gateway circuits for electric power steering |
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