CN113910908B - New energy automobile driving motor - Google Patents
New energy automobile driving motor Download PDFInfo
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- CN113910908B CN113910908B CN202111147534.3A CN202111147534A CN113910908B CN 113910908 B CN113910908 B CN 113910908B CN 202111147534 A CN202111147534 A CN 202111147534A CN 113910908 B CN113910908 B CN 113910908B
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- vehicle speed
- operational amplifier
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- 230000017525 heat dissipation Effects 0.000 claims abstract description 17
- 238000001514 detection method Methods 0.000 claims description 62
- 239000003990 capacitor Substances 0.000 claims description 16
- 230000002457 bidirectional effect Effects 0.000 claims description 5
- 230000000087 stabilizing effect Effects 0.000 claims description 4
- 238000001816 cooling Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L3/00—Electric devices on electrically-propelled vehicles for safety purposes; Monitoring operating variables, e.g. speed, deceleration or energy consumption
- B60L3/0023—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train
- B60L3/0061—Detecting, eliminating, remedying or compensating for drive train abnormalities, e.g. failures within the drive train relating to electrical machines
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention discloses a new energy automobile driving motor, which effectively solves the problem that the motor cannot be effectively cooled by adopting an air cooling heat dissipation mode in the prior art.
Description
Technical Field
The invention relates to the field of new energy automobile protection, in particular to a new energy automobile driving motor.
Background
Research shows that the temperature of the motor influences the service life of the motor, and the traditional motor temperature detection method is to inlay a temperature sensor inside the motor, and obtain temperature parameters through direct measurement. But this method relies on the temperature sensor accuracy and motor structure and is limited by the number of temperature sensors and the mounting location, not providing adequate thermal protection for the motor.
At present, most of heat dissipation of a new energy automobile motor adopts an air cooling mode, and the heat dissipation is carried out by directly utilizing the air cooling mode through a radiator (most of the heat dissipation fans) or not through the radiator, namely, the heat dissipation is carried out by air flow during automobile driving, when the air cooling heat dissipation mode is adopted, the temperature which is not well detected comprehensively by a traditional motor temperature detection method is utilized, when the temperature distribution is uneven, and the automobile speed is high at the moment, a large amount of heat of the motor is taken away by rapid air flow, and the temperature measured by a temperature sensor is normal at the moment due to inconsistent heating positions of the motor and the temperature sensor, but the abnormal heating positions of the actual motor are high, and a control system and a driver should be warned, so that the problem is not solved by the technical scheme in the prior art.
The present invention thus provides a new solution to this problem.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a new energy automobile driving motor, which effectively solves the problem that the motor cannot be effectively cooled by adopting an air cooling mode in the prior art.
The technical scheme is that the novel energy automobile driving motor comprises a temperature detection circuit, a vehicle speed detection circuit and an output circuit, wherein the temperature detection circuit detects a temperature signal of the motor by using a temperature sensor U1, performs subtraction and comparison operation on the temperature signal, starts the vehicle speed detection circuit, and is used for detecting a vehicle speed signal of the novel energy automobile, performing subtraction operation on the vehicle speed signal to obtain a comparison signal, and the output circuit obtains a heat dissipation signal and an alarm signal by using a difference signal and transmits the alarm signal to an ECU.
Further, the temperature detection circuit includes a temperature sensor U1, a 1 pin of the temperature sensor U1 is connected with one end of a resistor R17 and one end of a resistor R2 respectively and is connected with a positive polarity power supply VCC, a 2 pin of the temperature sensor U1 is connected with one end of a resistor R14 and one end of a bidirectional voltage regulator tube D4 respectively, the other end of the resistor R14 is connected with an in-phase end of an operational amplifier U2A, one end of a resistor R18 and an anode of a thyristor Q2 respectively, an inverting end of the operational amplifier U2A is connected with one end of a resistor R6 and the other end of a resistor R17 respectively, an output end of the operational amplifier U2A is connected with an anode of a diode D2, a cathode of the diode D2 is connected with one end of a capacitor C2 and a control electrode of the thyristor Q2 respectively, a cathode of the thyristor Q2 is connected with one end of the resistor R1, the other end of the resistor R1 is connected with one end of a resistor R3 and one end of the operational amplifier U6A respectively, an inverting end of the operational amplifier U6A is connected with the other end of the resistor R2 and the other end of the resistor R13 respectively, the other end of the resistor R13 is connected with the other end of the resistor R3 and the resistor R6A resistor is connected with the other end of the resistor C2 and the resistor R4 and the resistor is connected with the other end of the resistor C2 and the resistor is connected with the resistor.
Further, the vehicle speed detection circuit includes a diode D1, the positive pole of the diode D1 is connected with one end of a resistor R5, the base of a triode Q1, the output end of an operational amplifier U6A in the temperature detection circuit, the collector of the triode Q1 is connected with the 1 pin of a vehicle speed sensor U3 and one end of a resistor R8, the other end of the resistor R8 is connected with one end of a capacitor C1, the emitter of the triode Q1 is connected with one end of the resistor R5, one end of a resistor R11, one end of a resistor R2 in the temperature detection circuit and connected with a positive polarity power supply VCC, the 2 pin of the vehicle speed sensor U3 is connected with one end of a resistor R4, the other end of the resistor R4 is connected with the in-phase end of an operational amplifier U7A, the inverting end of the operational amplifier U7A is connected with the other end of the resistor R11 and one end of the resistor R10, the other end of the resistor R10 is connected with the 3 pin of the vehicle speed sensor U1, the other end of the capacitor C1 and the other end of the resistor R3 in the temperature detection circuit respectively and connected with the ground.
Further, the output circuit includes a resistor R9, one end of the resistor R9 is connected to the positive pole of the diode D3, the base of the triode Q3, and the output end of the operational amplifier U7A in the vehicle speed detection circuit, the negative pole of the diode D2 is connected to the 1 pin of the and gate U4A and one end of the relay K1, the 16 pin of the and gate U4A is connected to the negative pole of the diode D1 in the vehicle speed detection circuit, the output end of the and gate U4A is connected to the 2 pin of the switch S1, the 3 pin of the switch S1 is connected to one end of the resistor R12 and the collector of the triode Q3, the emitter of the triode Q3 is connected to one end of the resistor R9, one end of the resistor R11 in the vehicle speed detection circuit, one end of the resistor R2 in the temperature detection circuit and connected to the positive polarity, the 1 pin of the switch S1 is connected to one end of the resistor R15, the other end of the resistor R15 is connected to the same phase end of the operational amplifier U5A, the output end of the operational amplifier U5A is connected to the inverter end of the resistor U5A, the other end of the resistor 12, and the other end of the resistor K1 is connected to the other end of the heat sink of the resistor in the vehicle speed detection circuit is connected to the ECU 3, and the other end of the resistor is connected to the other end of the vehicle speed detection circuit is connected to the capacitor is connected to the ground.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages:
(1) Comparing the temperature signal detected by the temperature sensor U1 with another temperature signal to detect whether the motor of the new energy automobile is in a state of uneven temperature or not, detecting whether the temperature signal exceeds a temperature threshold signal, starting a radiator through a vehicle speed detection circuit and an output circuit when the temperature signal exceeds the temperature threshold signal, and assisting an air cooling radiating mode by using the radiator so as to realize a good radiating effect, thereby avoiding the problem that the motor cannot be effectively radiated by adopting the air cooling radiating mode in the prior art; meanwhile, the radiator is prevented from being started all the time to waste the battery power, and the radiator can be selectively started to ensure heat dissipation and optimize the power.
(2) The speed of the new energy automobile is detected through the speed detection circuit, whether the new energy automobile is in a high-speed state is judged, when the new energy automobile is in the high-speed state, an output circuit is utilized to output an alarm signal to the ECU, a driver is reminded that the temperature of a motor is too high at the moment, the radiator is started to radiate, the speed is required to be reduced so as to achieve a good radiating effect, and the speed detection circuit is arranged to improve the radiating effect of the radiator started by the output circuit.
Drawings
Fig. 1 is a schematic circuit diagram of the present invention.
Detailed Description
The foregoing and other features, aspects and advantages of the present invention will become more apparent from the following detailed description of the embodiments, which proceeds with reference to the accompanying fig. 1. The following embodiments are described in detail with reference to the drawings.
Exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.
A new energy automobile driving motor comprises a temperature detection circuit, a vehicle speed detection circuit and an output circuit.
The temperature detection circuit detects a temperature signal on the motor by using a temperature sensor U1, the detected temperature signal is transmitted to an operational amplifier U2A through a resistor R14 to be subtracted from another path of temperature signal, the other path of temperature signal is provided by using a resistor R6 and a resistor R17 to be divided, the resistor R6 is a PTCR type thermistor to detect the other path of temperature signal, when the operational amplifier U2A cannot conduct a diode D2, the problem of obvious temperature non-uniformity of the motor is indicated, when the operational amplifier U2A conducts the diode D2, the problem of obvious temperature non-uniformity of the motor is indicated, at the moment, the diode D2 conducts a thyristor Q2 through a capacitor C2, the thyristor Q2 transmits the temperature signal to the operational amplifier U6A through the resistor R1, the operational amplifier U6A compares the temperature signal with a temperature threshold signal, whether the temperature on the motor exceeds a threshold value or not is detected, the temperature threshold value is provided by the resistor R2 and the resistor R13, the voltage dividing tube D4 is used for inhibiting the problem of obvious temperature non-uniformity of the motor when the temperature signal detected by the temperature sensor U1 is conducted, the operational amplifier U6 is prevented from forming a surge amplitude, and the circuit is started when the temperature sensor U detects the temperature non-uniformity is high, and the operational amplifier is started, and the temperature is protected.
The temperature sensor U1 and the PTCR type thermistor are both positioned inside the motor stator, and are symmetrically distributed at the circumferential position, the temperature sensor type, the measuring position and the measuring principle of the temperature sensor U1 are all in the prior art, and are not described herein, and the PTCR type thermistor is positioned on the surface of the stator core.
The temperature detection circuit comprises a temperature sensor U1, wherein a pin 1 of the temperature sensor U1 is respectively connected with one end of a resistor R17 and one end of a resistor R2 and is connected with a positive polarity power supply VCC, a pin 2 of the temperature sensor U1 is respectively connected with one end of a resistor R14 and one end of a bidirectional voltage stabilizing tube D4, the other end of the resistor R14 is respectively connected with the same-phase end of an operational amplifier U2A, one end of a resistor R18 and the anode of a thyristor Q2, the opposite-phase end of the operational amplifier U2A is respectively connected with one end of a resistor R6 and the other end of the resistor R17, the output end of the operational amplifier U2A is respectively connected with the positive electrode of a diode D2, the negative electrode of the diode D2 is respectively connected with one end of a capacitor C2 and the control electrode of the thyristor Q2, the cathode of the thyristor Q2 is connected with one end of the resistor R1, the other end of the resistor R1 is respectively connected with one end of a resistor R3 and the same-phase end of the operational amplifier U6A, the opposite-phase end of the operational amplifier U6A is respectively connected with the other end of the resistor R2 and the other end of the resistor R13, the other end of the resistor R13 is respectively connected with the other end of the resistor R3 and the other end of the resistor C2 is connected with the other end of the resistor C2 and the resistor C4 is connected with the other end of the bidirectional voltage stabilizing tube.
The vehicle speed detection circuit is characterized in that an operational amplifier U6A in the temperature detection circuit is utilized to conduct, when the operational amplifier U6A conducts a diode D1, the fact that the temperature in the range detected by the temperature sensor U1 on the motor is too high is indicated, the diode D1 inputs a first high level to the output circuit, when the operational amplifier U6A conducts a triode Q1, the fact that the temperature on the motor is uneven but still in a normal state is indicated, the triode Q1 conducts the vehicle speed sensor U3, the vehicle speed sensor U1 starts to detect the vehicle speed of a new energy vehicle, the vehicle speed sensor is a mature technology, and not described in detail herein, as long as the vehicle speed sensor capable of outputting an analog vehicle speed signal in the prior art can be used, the vehicle speed signal is transmitted to the operational amplifier U7A through a resistor R4, the vehicle speed signal is compared with a standard vehicle speed signal to obtain a comparison signal, the standard vehicle speed signal is a high speed threshold value, the resistor R11 and the resistor R10 is used for dividing and the vehicle speed signal is provided, and the output circuit is started.
The vehicle speed detection circuit comprises a diode D1, wherein the anode of the diode D1 is respectively connected with one end of a resistor R5, the base of a triode Q1 and the output end of an operational amplifier U6A in the temperature detection circuit, the collector of the triode Q1 is respectively connected with the 1 pin of a vehicle speed sensor U3 and one end of a resistor R8, the other end of the resistor R8 is connected with one end of a capacitor C1, the emitter of the triode Q1 is respectively connected with one end of the resistor R5, one end of the resistor R11 and one end of a resistor R2 in the temperature detection circuit and is connected with a positive polarity power supply VCC, the 2 pin of the vehicle speed sensor U3 is connected with one end of a resistor R4, the other end of the resistor R4 is connected with the same phase end of an operational amplifier U7A, the opposite phase end of the operational amplifier U7A is respectively connected with the other end of the resistor R11 and one end of the resistor R10, and the other end of the resistor R10 is respectively connected with the 3 pin of the vehicle speed sensor U1 and the other end of the capacitor C1 and the other end of the resistor R3 in the temperature detection circuit.
The output circuit is conducted by utilizing a comparison signal output by the operational amplifier U7A in the vehicle speed detection circuit, when the operational amplifier U7A conducts the triode Q3, the triode Q3 outputs a heat dissipation signal, the heat dissipation signal is transmitted to the 1 pin through the 3 pin of the switch U1, and is transmitted to the operational amplifier U5A through the resistor R15 to be followed and output to the ECU, meanwhile, the radiator is started, the motor is cooled, a better cooling effect is achieved, the switch S1 is a pin switch of the relay K1, when the operational amplifier U7A conducts the diode D3, the vehicle speed of a new energy automobile is excessively high, the operational amplifier U7A conducts to the 1 pin of the AND gate U4A through the diode D3, when the 16 pin of the AND gate U4A receives the first high level transmitted by the diode D1, the AND gate U4A conducts at the same time, the diode D3 conducts the relay K1, the 1 pin of the switch S1 is connected with the 2 pin, the motor is transmitted to the amplifier U5A through the resistor R15, the temperature of the alarm signal is well, the temperature of the ECU is required to be started, the driver is reminded of the temperature of the driver, and the driver is high, the temperature is required to be cooled, and the driver is required to be cooled, and the temperature is reduced, and the driver is required to be cooled, and the temperature is reduced.
The output circuit comprises a resistor R9, one end of the resistor R9 is respectively connected with the positive electrode of a diode D3, the base electrode of a triode Q3 and the output end of an operational amplifier U7A in the vehicle speed detection circuit, the negative electrode of the diode D2 is respectively connected with one end of a 1 pin of an AND gate U4A and one end of a relay K1, the 16 pin of the AND gate U4A is connected with the negative electrode of the diode D1 in the vehicle speed detection circuit, the output end of the AND gate U4A and the 2 pin of a switch S1 want to be connected with each other, the 3 pin of the switch S1 is respectively connected with one end of a resistor R12 and the collector electrode of a triode Q3, the emitter electrode of the triode Q3 is respectively connected with one end of a resistor R9, one end of a resistor R11 in the vehicle speed detection circuit and one end of a positive polarity power supply in the temperature detection circuit, the 1 pin of the switch S1 is connected with one end of a resistor R15, the other end of the resistor R15 is connected with the same phase end of the operational amplifier U5A, the output end of the operational amplifier U5A is respectively connected with the inverting end of the ECU, the other end of the resistor R12 is connected with the other end of the temperature detection circuit and the other end of the resistor C1 is connected with the other end of the capacitor C3 in the vehicle speed detection circuit.
When the invention is specifically used, the temperature detection circuit detects a temperature signal on a motor by using the temperature sensor U1, the detected temperature signal is transmitted to the operational amplifier U2A through the resistor R14 to be subtracted with another temperature signal, wherein the other temperature signal is provided by using the resistor R6 and the resistor R17 to be divided, when the operational amplifier U2A can not conduct the diode D2, the problem of obvious temperature non-uniformity of the motor is not shown, when the operational amplifier U2A conducts the diode D2, the problem of obvious temperature non-uniformity of the motor is shown, at the moment, the diode D2 conducts the thyristor Q2 through the capacitor C2, the thyristor Q2 transmits the temperature signal to the operational amplifier U6A through the resistor R1, the operational amplifier U6A compares the temperature signal with a temperature threshold signal, whether the temperature on the motor exceeds a threshold value or not is detected, the operational amplifier U6A starts the vehicle speed detection circuit, the vehicle speed detection circuit uses an operational amplifier U6A in the temperature detection circuit to conduct, when the operational amplifier U6A conducts a diode D1, the diode D1 inputs a first high level to the output circuit, when the operational amplifier U6A conducts a triode Q1, the triode Q1 conducts a vehicle speed sensor U3, the vehicle speed sensor U1 starts to detect the vehicle speed of a new energy vehicle, a vehicle speed signal is transmitted to the operational amplifier U7A by a resistor R4, the operational amplifier U7A compares the vehicle speed signal with a standard vehicle speed signal (the standard signal is a vehicle speed threshold signal, for example, 100 km/h), the output circuit is started by the operational amplifier U7A, the output circuit uses the operational amplifier U7A in the vehicle speed detection circuit to conduct, when the operational amplifier U7A conducts a triode Q3, the triode Q3 outputs a heat dissipation signal, the heat dissipation signal is transmitted to the operational amplifier U5A by a resistor R15 to follow and output to an ECU, meanwhile, the radiator is started to cool the motor, a better cooling effect is achieved, when the operational amplifier U7A conducts the diode D3, the fact that the speed of the new energy automobile is too high at this time is indicated, the operational amplifier U7A outputs a second high level to the 1 pin of the AND gate U4A through the diode D3, when the 16 pin of the AND gate U4A receives the first high level transmitted by the diode D1 at the same time, the AND gate U4A conducts, an alarm signal is output, the diode D3 conducts the relay K1 at this time, the 1 pin of the switch S1 is connected with the 2 pin, the alarm signal is transmitted to the operational amplifier U5A through the resistor R15, the operational amplifier U5A outputs the signal to the ECU after following, and the radiator is started to remind a driver that the temperature of the motor is too high at this time, the radiator is started to conduct heat dissipation, and a better heat dissipation effect is achieved through speed reduction.
Through comparing the temperature signal that temperature sensor U1 detected with another way temperature signal, detect whether the motor of new energy automobile is in the state of temperature inequality to detect whether temperature signal has exceeded temperature threshold value signal, when exceeding temperature threshold value signal, start the radiator through speed of a motor vehicle detection circuit and output circuit, utilize the radiator to assist the forced air cooling heat dissipation mode, with the realization better radiating effect, avoided adopting the forced air cooling heat dissipation mode in the prior art and can not effectually dispel the heat to the motor the problem appearance.
The speed of the new energy automobile is detected through the speed detection circuit, whether the new energy automobile is in a high-speed state is judged, when the new energy automobile is in the high-speed state, an output circuit is utilized to output an alarm signal to the ECU, a driver is reminded that the temperature of a motor is too high at the moment, the radiator is started to radiate, the speed is required to be reduced so as to achieve a good radiating effect, and the speed detection circuit is arranged to improve the radiating effect of the radiator started by the output circuit.
Claims (1)
1. The novel energy automobile driving motor is characterized by comprising a temperature detection circuit, a vehicle speed detection circuit and an output circuit, wherein the temperature detection circuit detects a temperature signal of the motor by using a temperature sensor U1, performs subtraction and comparison operation on the temperature signal, and starts the vehicle speed detection circuit, the vehicle speed detection circuit is used for detecting a vehicle speed signal of a novel energy automobile, performs subtraction operation on the vehicle speed signal to obtain a comparison signal, and the output circuit obtains a heat dissipation signal and an alarm signal by using a difference signal and transmits the alarm signal to an ECU;
the temperature detection circuit comprises a temperature sensor U1, a pin 1 of the temperature sensor U1 is respectively connected with one end of a resistor R17 and one end of a resistor R2 and is connected with a positive polarity power supply VCC, a pin 2 of the temperature sensor U1 is respectively connected with one end of a resistor R14 and one end of a bidirectional voltage stabilizing tube D4, the other end of the resistor R14 is respectively connected with the same-phase end of an operational amplifier U2A, one end of a resistor R18 and the anode of a thyristor Q2, the opposite-phase end of the operational amplifier U2A is respectively connected with one end of a resistor R6 and the other end of the resistor R17, the output end of the operational amplifier U2A is connected with the anode of a diode D2, the cathode of the diode D2 is respectively connected with one end of a capacitor C2 and the control electrode of the thyristor Q2, the cathode of the thyristor Q2 is connected with one end of a resistor R1, the other end of the resistor R1 is respectively connected with one end of a resistor R3 and the same-phase end of an operational amplifier U6A, the opposite-phase end of the operational amplifier U6A is respectively connected with the other end of the resistor R2 and one end of a resistor R13, the other end of the resistor R13 is respectively connected with the other end of the resistor R3, the other end of a capacitor C2, the other end of a resistor R18, the other end of a bidirectional voltage stabilizing tube D4 and the upper end of the resistor R6 and is connected with the ground, wherein the temperature sensor U1 and the PTCR type thermistor are both positioned in a motor stator and are symmetrically distributed at the circumferential position, and the resistor R6 is the PTCR type thermistor;
the vehicle speed detection circuit comprises a diode D1, wherein the positive electrode of the diode D1 is respectively connected with one end of a resistor R5, the base electrode of a triode Q1 and the output end of an operational amplifier U6A in the temperature detection circuit, the collector electrode of the triode Q1 is respectively connected with the 1 pin of a vehicle speed sensor U3 and one end of a resistor R8, the other end of the resistor R8 is connected with one end of a capacitor C1, the emitter electrode of the triode Q1 is respectively connected with one end of the resistor R5, one end of a resistor R11 and one end of a resistor R2 in the temperature detection circuit and is connected with a positive polarity power supply VCC, the 2 pin of the vehicle speed sensor U3 is connected with one end of a resistor R4, the other end of the resistor R4 is connected with the same phase end of an operational amplifier U7A, the opposite end of the operational amplifier U7A is respectively connected with the other end of the resistor R11 and one end of a resistor R10, and the other end of the resistor R10 is respectively connected with the 3 pin of the vehicle speed sensor U1 and the other end of the capacitor C1 and the other end of the resistor R3 in the temperature detection circuit;
the output circuit comprises a resistor R9, one end of the resistor R9 is respectively connected with the positive electrode of a diode D3, the base electrode of a triode Q3 and the output end of an operational amplifier U7A in the vehicle speed detection circuit, the negative electrode of the diode D2 is respectively connected with the 1 pin of an AND gate U4A and one end of a relay K1, the 16 pin of the AND gate U4A is connected with the negative electrode of the diode D1 in the vehicle speed detection circuit, the output end of the AND gate U4A is connected with the 2 pin of a switch S1, the 3 pin of the switch S1 is respectively connected with one end of a resistor R12 and the collector electrode of a triode Q3, the emitter electrode of the triode Q3 is respectively connected with one end of the resistor R9, one end of a resistor R11 in the vehicle speed detection circuit and one end of a positive polarity power supply in the temperature detection circuit, the other end of the resistor R2 in the temperature detection circuit is connected with one end of the resistor R15, the other end of the resistor R15 is connected with the same phase end of the operational amplifier U5A, the output end of the operational amplifier U5A is respectively connected with the inverting end of the operational amplifier U5A, the other end of the ECU, the other end of the radiator R12 is connected with the other end of the resistor C1 and the other end of the capacitor C in the vehicle speed detection circuit is connected with the capacitor C3 in the vehicle speed detection circuit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111147534.3A CN113910908B (en) | 2021-09-29 | 2021-09-29 | New energy automobile driving motor |
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| CN202111147534.3A CN113910908B (en) | 2021-09-29 | 2021-09-29 | New energy automobile driving motor |
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| CN113910908B true CN113910908B (en) | 2024-02-20 |
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| CN213243812U (en) * | 2020-09-16 | 2021-05-18 | 武汉嘉晨汽车技术有限公司 | MOSFET power-on pre-charging circuit of motor controller main loop |
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2021
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| JP2002171788A (en) * | 2000-12-05 | 2002-06-14 | Jianzhun Electric Mach Ind Co Ltd | Motor for radiation fan having revolution controlled by temperature |
| JP2010019603A (en) * | 2008-07-08 | 2010-01-28 | Hitachi Ltd | Power supply |
| CN202586849U (en) * | 2012-04-20 | 2012-12-05 | 深圳市高标电子科技有限公司 | Electric vehicle and motor controller thereof |
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| CN113910908A (en) | 2022-01-11 |
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