CN208722023U - Vehicle control unit of electric vehicle - Google Patents
Vehicle control unit of electric vehicle Download PDFInfo
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- CN208722023U CN208722023U CN201821571560.2U CN201821571560U CN208722023U CN 208722023 U CN208722023 U CN 208722023U CN 201821571560 U CN201821571560 U CN 201821571560U CN 208722023 U CN208722023 U CN 208722023U
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Abstract
A kind of vehicle control unit of electric vehicle, include microprocessor module, power module, CAN communication module, LIN communication module, timing wake-up module, analog input module, digital input module, digital output module, high-low side drive module, external sensor power supply module；Wherein, wake source detection module, the wake-up Source Type transmitted for detecting modules are equipped in power module；It is set in CAN communication module there are two part, a part is completed to have arousal function while communication function, and another part only has communication function.By being used in conjunction with each other with upper module, solve the technical problems such as power supply existing in the prior art is unstable, bus interface protection is not perfect, collection of simulant signal precision is low, Electro Magnetic Compatibility is poor.Provide a kind of perfect in shape and function, the stable vehicle control unit of electric vehicle of service performance.
Description
Technical field
The utility model relates to automotive fields, more particularly, to a kind of vehicle control unit of electric vehicle.
Background technique
Electric car is the complication system being made of multiple subsystems, mainly includes battery, motor, gearbox, system
The dynamical systems and other attachmentes such as air-conditioning system, servo steering system etc. such as dynamic.The control unit that each subsystem passes through oneself
(ECU) respective function and target are completed.In order to meet vehicle dynamic property, economy, safety and the target of comfort, one
Aspect must have intelligentized people-car interaction interface, on the other hand, each system must also coordination with one another, Optimized Matching.Therefore,
Pure electric automobile needs an entire car controller VCU to manage the Collaboration of subsystems.
For entire car controller VCU as core control part, it acquires accelerator pedal signal, brake pedal signal and other portions
Part signal, and after making corresponding judgement, the movement of each section controller of lower layer is controlled, automobile normal running is driven.As vapour
The command and management center of vehicle, entire car controller major function include: driving moment control, the optimal control of braking energy, vehicle
Energy management, the maintenance and management of CAN network, the diagnosis of failure and processing, vehicle-state monitoring and display control etc..
Existing VCU technical solution mainly acquires accelerator pedal signal, speed signal, brake signal, gear signal etc.
Vehicular status signal, while driving motor, the status information of power battery are obtained by CAN communication and sent out after making corresponding judgement
Order is driven out, is communicated to the dynamical system of vehicle, is realized the full-vehicle control of pure electric automobile.Power-on and power-off, row including vehicle
The functions such as vehicle and parking, cruise, attachment control and Brake energy recovery.Implementation are as follows: controller is according to collected biography
Sensor signal judges the driving intention of driver, calculates the driving, system that vehicle needs to run at this time by predetermined control strategy
Dynamic power, torque etc., are sent to corresponding power part, needing the information of alerting drivers to be shown in instrument, and meanwhile it is right
Various malfunctions are detected and are recorded, for driver's judgement and maintenance personal's maintenance work.
Existing controller has the following problems:
1. the resistance to abnormal voltage grade of hardware itself is relatively low, poor anti jamming capability, signal is easy to be interfered and influence signal
The accuracy of acquisition.
2. protecting circuit designed is incomplete, poor to the tolerance of external surge voltage, electric current, the easy shadow of external impact
Ring the normal work of internal circuit；
3.CAN Bus Interface Circuit Design is incomplete, and after bus breaks down, self-recovery ability is poor.
4. the design of whole plate power supply is not good enough, the stable power-supplying of whole plate not can guarantee.
5. collection of simulant signal precision is low, cause the parsing of driver's driving intention inaccurate.
6. the redundancy of hardware resource is inadequate, the channel of certain functional modules only meets the needs of current, after can not carrying out
Continuous Function Extension.
Summary of the invention
In view of the above problems, including the utility model proposes a kind of vehicle control unit of electric vehicle: microprocessor mould
Block, power module, CAN communication module, LIN communication module, timing wake-up module, analog input module, digital input module, number
Word output module, high-low side drive module, external sensor power supply module；Wherein, it is equipped with wake source in power module and detects mould
Block, the wake-up Source Type transmitted for detecting modules；It is set in CAN communication module there are two part, a part is completed
Arousal function is had while communication function, another part only has communication function.By being used in conjunction with each other with upper module,
Solve the technical problems such as power supply existing in the prior art is unstable, bus interface is not perfect, collection of simulant signal precision is low.
To achieve the goals above, the technical solution adopted in the utility model are as follows: core of the microprocessor module as whole plate
Core module, coupled has power module, CAN communication module, LIN communication module, timing wake-up module, simulation input mould
Block, digital input module, digital output module, high-low side drive module, external sensor power supply module；
It include power supply core chips in the power module, the electric energy of battery is divided into after filter circuit of powering
Two tunnels；It is exported all the way to power supply core chips, is other module for power supply in system by power supply core chips output end；Another way
Successively after accumulator voltage detecting circuit, analog signal detection module by electric signal transmission into microprocessor module, it is micro-
Processor module detects that electric signal is normal, by enable signal input circuit to the signal input part of power supply core chips；It calls out
Source signal input circuit of waking up receives to wake up source signal, and wake-up source signal is exported and gives power supply core chips, controls power output；
Wake source signal input circuit and enable signal input circuit are connect after waking up power sense circuit with microprocessor module；
It include there are two CAN transceiver in the CAN communication module, each CAN transceiver signal output end is connected with
CAN physical bus interface circuit, one of CAN transceiver are connected with the wake source signal input circuit in power module, to
Power supply, which issues, wakes up source signal；
The analog input module is made of signal input module, high-voltage interlocking signal monitoring modular and reserved module.
Include TMS570 series core chip in the microprocessor module, is connected with power supply in core chips and connects
Mouth circuit, clock signal circuit, A/D switching reference voltages circuit, JTAG interface circuit, watchdog reset circuit, microprocessor
Temperature observation circuit.
LIN transceiver in the LIN communication module, signal receiving end are connect with microprocessor module, signal output
End is sequentially connected LIN physical bus interface circuit and LIN bus, the wake-up source signal input electricity of LIN transceiver and power module
Road is connected, and issues to power supply and wakes up source signal.
It include timing chip in the timing wake-up module, battery is by DC-DC converter directly to timing core
Piece power supply, the signal output end of timing chip are connected separately with clock signal circuit, the signal output end and power supply of timing chip
The wake source signal input circuit of module is connected, and issues to power supply and wakes up source signal.
Sensor in the signal input module will test information and pass sequentially through protection circuit, filter circuit, multichannel
After integrated operational amplifier circuit, bleeder circuit, it is transmitted in microprocessor module；Power module and external sensor power supply module pass through
It powers after protecting circuit to sensor.
The digital input module includes two parts；A part is normal signal input circuit, and regular tap is believed
Number after bleeder circuit, filter circuit, transmit a signal in microprocessor module；Another part is that pwm signal captures electricity
The pump speed control captured is controlled signal, fan speed-regulating control signal by road, and collision alarm passes sequentially through shaping circuit, partial pressure
After circuit and filter circuit, it is transmitted in microprocessor module.
The digital output module is PWM output module, the pwm signal in microprocessor module by filter circuit,
After protecting circuit, switching device, fan pump power is controlled, to control the operation of fan and water pump.
It is serial by SPI that high-low side switch core chip in the high-low side drive module receives microprocessor module
The order that bus issues gives high-low side switch control terminal by output after protection circuit.
The utility model has the following beneficial effects:
The core that power module, high-low side drive module, CAN, LIN communication module select automobile specified chip to be used as,
Realize wide cut power supply, high stability, High-reliability power source circuit；Multichannel, high-power, high current high-low side drive module；It is high
Rate, the communication of high anti-interference ability multi-channel-CAN and LIN communication module.Signal acquisition and detection module realize high-precision letter
Number acquisition, highly sensitive temperature detection.Power PWM signal output module uses high-power optocoupler, realizes small signal control
The function of big voltage, electric current is made, and then realizes the high-power output of pwm signal, while external circuit can also be isolated to controller
Internal impact.The signaling interface of hardware circuit has over-voltage, current foldback circuit, and power module has anti-reverse protection, these
It designs the stability for substantially increasing hardware circuit, safety and realizes good Electro Magnetic Compatibility.
Detailed description of the invention
Fig. 1 is the utility model circuit block diagram.
Fig. 2 is microprocessor module circuit block diagram in Fig. 1.
Fig. 3 is power module circuitry block diagram in Fig. 1.
Fig. 4 is filter circuit schematic diagram of powering in Fig. 3.
Fig. 5 is CAN communication module circuit block diagram in Fig. 1.
Fig. 6 is CAN physical bus interface circuit block diagram in Fig. 5.
Fig. 7 is the circuit diagram of Fig. 6.
Fig. 8 is LIN communication module circuitry block diagram in Fig. 1.
Fig. 9 is timing wake-up modular circuit block diagram in Fig. 1.
Figure 10 is analog input module circuit block diagram in Fig. 1.
Figure 11 is digital input module circuit block diagram in Fig. 1.
Figure 12 is the circuit diagram of shaping circuit one in Figure 11.
Figure 13 is the circuit diagram of shaping circuit two in Figure 11.
Figure 14 is the circuit block diagram of digital output module in Fig. 1.
Figure 15 is the circuit block diagram of high-low side drive module in Fig. 1.
Figure 16 is external sensor power supply module circuit block diagram in Fig. 1.
Figure 17 is the circuit diagram of power supply filter circuit two in Figure 16.
Figure 18 is Fig. 1 enable signal input circuit schematic diagram.
Specific embodiment
Vehicle control unit of electric vehicle, it is characterised in that: nucleus module of the microprocessor module 1 as whole plate, with its phase
Some even has power module 2, CAN communication module 3, LIN communication module 4, timing wake-up module 5, analog input module 6, number
Word input module 7, digital output module 8, high-low side drive module 9, external sensor power supply module 10.
The microprocessor module 1 is as shown in Fig. 2, include TMS570 series core in the microprocessor module 1
Heart core is connected with power supply interface circuit, clock signal circuit, A/D switching reference voltages circuit, jtag interface in core chips
Circuit, watchdog reset circuit, temperature of micro observation circuit.The above circuit is to allow the reliable and stable work of microprocessor
The basic circuit of work is the nucleus module in whole-control system, will directly influence system function whether normal work
It realizes.This module is using the TMS family chip of TI company as core chips, the chip dominant frequency 160MHz, 1MB Flash, 128KB
RAM, 3 tunnel CAN controllers, 1 road spi bus, totally 24 channel 12-Bit converter, 1 road I2C bus, 1 road LIN bus, 64
Road GPIO port.Microprocessor module mainly includes core chips signal source of clock, A/D switching reference voltages circuit, house dog
Reset circuit, JTAG interface circuit, microprocessor power supply interface circuit, temperature of micro observation circuit etc..Signal source of clock
Using 16M without vibration, 2 matching capacitances of arranging in pairs or groups.A/D switching reference voltages circuit directly selects DC12V/DC3.3V chip, output
Then cooperation filter capacitor in end is directly connected to the reference voltage of microprocessor and with reference on ground pin.Watchdog reset circuit
Select dedicated watchdog chip source brilliant, which uses the recommendation application of chip data handbook, microprocessor
On select a GPIO pin to be connected to the signal input pin of watchdog chip as feeding-dog signal.It can guarantee microprocessor in this way
Once can timely reset and start to work again, it is ensured that VCU can continue work in the case where program fleet occur or crashing
Make.JTAG interface circuit is directly drawn out on 10-Pin JTAG interface by microprocessor chip pin.This module can be realized
The downloading and debugging function of program.Microprocessor power supply interface circuit mainly connects decoupling capacitor in corresponding energization pins,
The noise jamming in power supply line is filtered out, steady operation is allowed the microprocessor to.1.2V of the supply voltage from power module
It powers with 3.3V.Every external decoupling capacitor of road power supply line of chip.The effect of temperature of micro detection circuit is that monitoring is micro-
The temperature of processor prevents temperature excessively high and damages.The circuit is mainly realized by the temperature sensor with I2C bus interface.
The power module 2 includes power supply core chips as shown in Figure 3-4, and the electric energy of battery passes through for electrofiltration
It is divided into two tunnels after wave circuit；It is exported all the way to power supply core chips, is other moulds in system by power supply core chips output end
Block power supply；Another way is successively by electric signal transmission to micro- place after accumulator voltage detecting circuit, analog signal detection module
It manages in device module 1, microprocessor module 1 detects that electric signal is normal, is given by enable signal input circuit (as shown in figure 18)
The signal input part of power supply core chips；Wake source signal input circuit receives to wake up source signal, and will wake up source signal output
Power supply core chips is given, power output is controlled；Wake source signal input circuit and enable signal input circuit are examined by wake source
Slowdown monitoring circuit (specially resistor voltage divider circuit) is connect with microprocessor module 1 afterwards.
Effect of the power module 2 in VCU hardware circuit is very crucial, its stabilization whether is directly related to entire VCU
Whether work normally.Its working environment very severe, external power supply voltage range is big, sometimes will also be in face of surge current to electricity
The impact of source module.So power module need to have wide cut supply input and high stability, high reliability for electricity output.
This module uses the automobile specified power supply chip of TI company, and supply district 5.75V-40V can provide 3 Voltage rails: 1.2V,
3.3V and 5V output.Power supply filter circuit is added in power input, on the one hand filters out the interference signal and wave in power supply line
The influence of voltage, electric current to power supply chip stability is gushed, the external electromagnetic interference signal mistake that on the other hand power supply chip is generated
It filters.Power input is monitored battery voltage there are one special accumulator voltage detecting circuit, when VCU is detected
When to discharged or defective battery, starts DC/DC charging circuit in time and charge to battery.In the wake source input pin of chip, use
Multichannel wake source parallel circuit can be realized automotive ignition wake-up, DC charging wake-up, AC charging wake-up, CAN bus activity
It wakes up and LIN bus activity wakes up.Then this several road wakes up source signals again by wake-up power sense circuit, come detect power supply be by
Which kind of signal wakes up, to execute the control function under corresponding operating condition.In addition, the enabled pin of power supply chip is by micro process all the way
The digital output pin of device chip controls, and after VCU wakes up, this pin is high level, so as to when wake-up signal disappears, electricity
Source chip still has enable signal to be allowed to work normally, and powers for entire VCU plate, realizes that VCU's powers on self-holding function and controlled disconnected
Electricity Functional.
The CAN communication module 3 as illustrated in figs. 5-7, in include there are two CAN transceiver, except transceiver works normally
Outside necessary peripheral circuit, each CAN transceiver signal output end is connected with outside CAN physical bus interface circuit and transceiver
Circuit is enclosed, one of CAN transceiver is connected with the wake source signal input circuit in power module, issues wake source to power supply
Signal.
CAN communication module 3 is the hardware foundation that VCU is communicated with other controllers, and only CAN module works normally, and VCU is
It can be properly received CAN message, publication CAN instruction, control vehicle all parts realize scheduled function.CAN communication module 3 by
Two parts composition: first part be using the single channel CAN chip of NXP as the CAN communication all the way of core, and have arousal function.This
Outside, this module can be carried out there are one error indication signal as long as communication failure occurs in this road CAN bus by this signal
Feedback.Second part be using the two-way CAN chip of NXP as core, and with single channel it is enabled/the two-way CAN communication of forbidden energy control.
Two parts something in common is that the CAN controller pin that signal input pin is directly carried from microprocessor is drawn.Signal output end
It is identical with the interface circuit of CAN physical bus.It is all the CAN physical bus interface circuit in the two paths of differential signals of output end
Common mode choke, shunt capacitance and balance resistance are concatenated, between CAN bus for realizing bus needed for CAN bus communication
Voltage class, and increase the anti-interference of CAN communication, filter out external interference signal.
The LIN communication module 4 is as shown in figure 8, include LIN transceiver, signal receiving end and microprocessor module
Connection, signal output end are sequentially connected LIN physical bus interface circuit and LIN bus, the wake-up of LIN transceiver and power module
Source signal input circuit is connected, and issues to power supply and wakes up source signal.
LIN communication module uses LIN communication dedicated chip, realizes this module in INH pin serial connection diode and 1K resistance
Active work mode.
The timing wake-up module 5 is as shown in figure 9, include timing chip, battery is direct by DC-DC converter
It powers to timing chip, the signal output end of timing chip is connected separately with clock signal circuit, the signal output of timing chip
End is connected with the wake source signal input circuit of power module, issues to power supply and wakes up source signal.
Timing wake-up module is made of 2 parts: power supply module and timing chip.Power supply module is using DC12V/DC3.3V's
Linear regulator is realized using the peripheral circuit that chip is recommended.Timing chip uses 32.768kHz to believe without source crystal oscillator as clock
Number source, SCL the and SDA pin of control terminal are connected on the corresponding pin of I2C bus control unit of microprocessor.It is total by I2C
The wakeup time of line setting chip.When the count value of internal counter reaches setting value, output end INT pin can export one
Low level causes triode ON, and since the emitter of triode is connected to 3.3V voltage, collector voltage can be when conducting
3V or so, power module is enabled at this time, starts to power, VCU is waken up.
The analog input module 6 is as shown in Figure 10, by signal input module 6-1, high-voltage interlocking signal monitoring modular
6-2 and reserved module 6-3 composition.
Sensor in the signal input module 6-1 will test information and pass sequentially through protection circuit, filter circuit, more
After road integrated operational amplifier circuit, bleeder circuit, it is transmitted in microprocessor module 1；Power module 2 and external sensor power supply module
10 after protection circuit to sensor by powering.Specifically, accelerator pedal two paths of signals, brake pedal two paths of signals, temperature pass
Sensor two paths of signals, pressure sensor two paths of signals, totally 8 road signal.Each component has 2, and independent circuit generation should mutually
The signal of component is used for redundancy determination, to increase the reliability of the signal.Route one and route two are by two independent power supply moulds
High-precision integrated multipath operational amplifier is selected in block power supply, this part, is connected by the way of voltage follow per all the way.It is inputting
Resistance is widened under signal end reduces noise jamming.Using current-limiting resistance, instantaneous big voltage, the electric current wave of VCU external circuit are prevented
It gushes and amplifier chip is damaged.Next connection filter circuit inhibits interference.Using protection circuit, inputted on every road
The feeder ear and simulation ground terminal concatenation self-recovery fuse of signal prevent power supply short circuit.The output end of amplifier divides electricity through high-precision
Road is directly connected to the simulation input pin of microprocessor.Further, since the signal accuracy requirement of these sensors is very high,
In design, circuit joined the observation circuit to duplex feeding voltage, which is made of bleeder circuit and protection circuit, voltage
Signal is connected to the simulation input pin of microprocessor after two circuits.
High-voltage interlocking signal monitoring modular 6-2, with the 5V power voltage supply of power module.The circuit is by bleeder circuit and protection
Circuit composition.
It is similar with high-voltage interlocking signal monitoring modular 6-2 in reserved module 6-3 principle, and by bleeder circuit and protection electricity
Road composition.But unpowered.For being acquired to more analog signals, realizes Function Extension, increase the versatility of controller.
The digital input module 7 includes two parts as shown in figure 11；A part is normal signal input circuit,
By regular tap signal after bleeder circuit, filter circuit, transmit a signal in microprocessor module；Another part is
The pump speed control captured is controlled signal, fan speed-regulating control signal by PWM signal capture circuit, and collision alarm successively leads to
After crossing shaping circuit, bleeder circuit and filter circuit, it is transmitted in microprocessor module.
First part is common digital signal input circuit, and signal is introduced directly into micro- after bleeder circuit and filter circuit
The digital input pins of processor.Second part is captured to pwm signal.In signal input part, signal first passes through shaping
Circuit, then through partial pressure and filter circuit after be connected to microprocessor digital input pins on.The shaping electricity of two kinds of signals
Road is slightly different, such as Figure 12-13.
The digital output module 8 is PWM output module as shown in figure 14, the pwm signal in microprocessor module 1
After filter circuit, protection circuit, switching device, fan pump power, to control the operation of fan and water pump.
The effect of digital output module is the on-off using pwm signal control switch circuit, and then controls water pump, cooling wind
The work of fan.This module is actually lower edge switch circuit of a set of optocoupler using mid power as switch, signal
From the PWM output pin of microprocessor, through filter circuit, then connecting resistance pulls down to ground, while using protection circuit
The signal input pin of optocoupler is accessed afterwards, another pin of input terminal ground connection constitutes signal input circuit, output end one end
External fan, water pump；Other end ground connection constitutes output loop.Turning for water pump fan is controlled by the duty ratio size of pwm signal
Speed.This module totally four channels, wherein other two-way is reserved channel.
The high-low side drive module 9 as shown in figure 15, in high-low side switch close chip centroid and receive microprocessor mould
The order that block is issued by SPI Serial Bus gives high-low side switch control terminal by output after protection circuit.
High-low side drive module selects multichannel, high-power, high current high-low side switch chip as core devices, control
There is special enabled pin control chip operation state at end.Control mode sends order using SPI universal serial bus, and control is corresponding
Channel on or off.Chip itself has overcurrent protection mechanism, and when exporting electric current more than the threshold value that chip can be born, chip interior is certainly
Dynamic shutdown output, to protect chip, prevents overcurrent damage.
The external sensor power supply module 10 as shown in figs. 16-17, is inputted using wide scope, fixed voltage output
Chip, input voltage come from 12V battery, and enabled pin pulls down to ground and is connected with the digital output pin of microprocessor, by
Microprocessor controls the working condition of this module.The periphery circuit design that other pins are recommended according to chip data handbook.Output
End is 5V voltage output.
Claims (8)
1. vehicle control unit of electric vehicle, it is characterised in that: nucleus module of the microprocessor module (1) as whole plate, with its phase
What is connected has power module (2), CAN communication module (3), LIN communication module (4), timing wake-up module (5), analog input module
(6), digital input module (7), digital output module (8), high-low side drive module (9), external sensor power supply module (10)；
It include power supply core chips in the power module (2), the electric energy of battery is divided into after filter circuit of powering
Two tunnels；It is exported all the way to power supply core chips, is other module for power supply in system by power supply core chips output end；Another way
Successively after accumulator voltage detecting circuit, analog signal detection module by electric signal transmission to microprocessor module (1),
Microprocessor module (1) detects that electric signal is normal, and the signal by enable signal input circuit to power supply core chips inputs
End；Wake source signal input circuit receives to wake up source signal, and wake-up source signal is exported and gives power supply core chips, controls electric energy
Output；Wake source signal input circuit and enable signal input circuit after waking up power sense circuit with microprocessor module
(1) it connects；
It include there are two CAN transceiver in the CAN communication module (3), each CAN transceiver signal output end is connected with
CAN physical bus interface circuit, one of CAN transceiver are connected with the wake source signal input circuit in power module, to
Power supply, which issues, wakes up source signal；
The analog input module (6) is by signal input module (6-1), high-voltage interlocking signal monitoring modular (6-2) and reserves
Module (6-3) composition.
2. vehicle control unit of electric vehicle according to claim 1, it is characterised in that: the microprocessor module (1)
In include TMS570 series core chip, be connected in core chips power supply interface circuit, clock signal circuit, A/D turn
Change reference voltage circuit, JTAG interface circuit, watchdog reset circuit, temperature of micro observation circuit.
3. vehicle control unit of electric vehicle according to claim 1, it is characterised in that: in the LIN communication module (4)
LIN transceiver, signal receiving end connect with microprocessor module, and signal output end is sequentially connected LIN physical bus interface electricity
Road and LIN bus, LIN transceiver are connected with the wake source signal input circuit of power module, issue to power supply and wake up source signal.
4. vehicle control unit of electric vehicle according to claim 1, it is characterised in that: the timing wake-up module (5)
In include timing chip, battery is directly powered to timing chip by DC-DC converter, the signal output end of timing chip
It is connected separately with clock signal circuit, the wake source signal input circuit phase of the signal output end and power module of timing chip
Even, it is issued to power supply and wakes up source signal.
5. vehicle control unit of electric vehicle according to claim 1, it is characterised in that: the signal input module (6-
1) sensor in will test information pass sequentially through protection circuit, filter circuit, multichannel integrated operational amplifier circuit, after bleeder circuit,
It is transmitted in microprocessor module (1)；Power module (2) and external sensor power supply module (10) by after protection circuit to biography
Sensor power supply.
6. vehicle control unit of electric vehicle according to claim 1, it is characterised in that: the digital input module (7)
It include two parts；A part is normal signal input circuit, by regular tap signal after bleeder circuit, filter circuit,
It transmits a signal in microprocessor module；Another part is that pwm signal captures circuit, and the pump speed control captured is controlled and is believed
Number, fan speed-regulating control signal, collision alarm after passing sequentially through shaping circuit, bleeder circuit and filter circuit, is transmitted to micro- place
It manages in device module.
7. vehicle control unit of electric vehicle according to claim 1, it is characterised in that: the digital output module (8)
For PWM output module, the pwm signal in microprocessor module (1) is after filter circuit, protection circuit, switching device, control
Fan pump power, to control the operation of fan and water pump.
8. vehicle control unit of electric vehicle according to claim 1, it is characterised in that: the high-low side drive module
(9) the high-low side switch core chip in receives the order that microprocessor module is issued by SPI universal serial bus, passes through protection electricity
High-low side switch control terminal is given in output behind road.
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| CN111464412A (en) * | 2020-03-31 | 2020-07-28 | 东风汽车集团有限公司 | L IN transceiving control circuit and dormancy and awakening control method thereof |
| CN112523865A (en) * | 2020-11-30 | 2021-03-19 | 海鹰企业集团有限责任公司 | Engine electric control system |
| CN112612229A (en) * | 2020-12-16 | 2021-04-06 | 江苏利核仪控技术有限公司 | Analog signal input acquisition circuit of speed regulation controller and function safety guarantee method thereof |
| CN113225705A (en) * | 2021-04-14 | 2021-08-06 | 沈阳工业大学 | Multi-robot data communication system with customized communication interface |
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| CN113625689A (en) * | 2021-08-10 | 2021-11-09 | 宁波兴为汽车电子有限公司 | A vehicle-mounted low-power CAN wake-up system and method thereof |
| CN113659814A (en) * | 2021-08-18 | 2021-11-16 | 睿驰电装(大连)电动系统有限公司 | High-low side driving circuit, high-low side driving system and automobile control system |
| CN115017095A (en) * | 2022-08-05 | 2022-09-06 | 微传智能科技（常州）有限公司 | Current output type AK protocol wheel speed chip communication system and method |
| CN117997333A (en) * | 2024-04-03 | 2024-05-07 | 宁波均联智行科技股份有限公司 | Control signal transmission circuit, vehicle-mounted electronic equipment and vehicle |
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