CN100537292C - Method for reclaiming braking energy from automobile retarder and system thereof - Google Patents
Method for reclaiming braking energy from automobile retarder and system thereof Download PDFInfo
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- CN100537292C CN100537292C CNB200610041981XA CN200610041981A CN100537292C CN 100537292 C CN100537292 C CN 100537292C CN B200610041981X A CNB200610041981X A CN B200610041981XA CN 200610041981 A CN200610041981 A CN 200610041981A CN 100537292 C CN100537292 C CN 100537292C
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Abstract
The invention relates to a vehicle braking energy recycling reducing method and relative system, which uses the braking energy of vehicle reducer to generate power. The braking generator of reducer is serially connected between the gear-box and the first transmission axle; the braking generator contains an electromotor, which is connected to an electrical transformation device; the electrical transformation device is connected to the loads. The braking generator of reducer uses the braking torque generated by the vehicle to drive the electromotor to generate electricity. The invention can transform the braking energy into electricity to be stored and utilized. The invention has the advantages that simple structure, quick response, and easy installment, which especially provides the alternative power driving method.
Description
Technical field
The present invention relates to the slow method and system of automobile brake, particularly a kind of method for reclaiming braking energy from automobile retarder and system thereof.
Background technology
The principle of work that motor power reclaims is that electrical motor is converted to electric energy as electrical generator with lock torque, realizes the energy recovery of kinetic energy.At present, the method has been widely used in the middle of the brake energy recovery of Electrical Bicycle, electro-tricycle, mini electric vehicle, electronlmobil, and has obtained good effect.Car body kinetic energy is converted into electric energy supplies with storage battery or super capacitor, both reached the effect that drag moment is provided, improved the continual mileage of battery-driven car again, also can be simultaneously the power supply of car body accessory feed, saved the energy, have very high economic value, become the development tendency of following battery-driven car.
Based on to electronlmobil, mini electric vehicle energy recovery Study on Technology achievement, produced with these technology be applied to automobile slow/idea in the middle of the row device assist brake, because traditional slow/row device can be divided into forms such as electric vortex type, hydraulic type and magneto according to the difference of principle of work, especially for electric vortex type slow/the row device, the phenomenon that too much burns out because of the heat that produces may appear.Though realized the effect of assist brake, this part braking kinetic energy has but slatterned with various radiating modes, as use for reference battery-driven car energy recovery braking technology, apply it in slow/row device, utilize motor that braking kinetic energy is converted to electric energy, and this portion of energy is stored with closed-centre system by power-converting device, used for the car body accessory feed, both can reach the effect of drag, can realize the purpose of the recovery of energy again.
Summary of the invention
The objective of the invention is to, propose a kind of method for reclaiming braking energy from automobile retarder and system thereof, this method and system thereof utilize automobile slow/braking energy that the row device produces reclaims generating, the braking energy of automobile is reclaimed and is stored and utilizes.
Method and system of the present invention provide new energy source for automobile.This is particularly important for electronlmobil, can effectively improve the continual mileage of electronlmobil, has remarkable economical and is worth and social value.In addition, in the process of utilizing slow/row device brake power generating, adopt suitable control method, can make the effect that native system plays provides vehicle-mounted accessory feed.
For achieving the above object, the present invention adopts following technical measures:
Utilize automobile slow/energy recovery generating that the braking of row device produces, with slowly/row device brake power generating device is connected in series with between the change speed gear box and transmission shaft of automobile, slowly/electrical motor is arranged in the row device brake power generating device, be connected with power-converting device on the electrical motor, power-converting device includes control module and power model, and overvoltage protective module is arranged on the power model; Load links to each other power-converting device with broad sense, slowly/lock torque drive motor that row device brake power generating device utilizes automobile to produce produces electric energy, and stored and utilized, it is characterized in that, described broad sense load comprises closed-center system and energy-dissipating device, when control module has been stored up full electric energy in closed-center system, electric energy is consumed in energy-dissipating device.
This method specifically may further comprise the steps:
A. slow/kinetic energy when row device brake equipment receives automobile brake, and this kinetic energy passed to slowly/goes electrical motor in the device brake equipment, utilize the generating of electrical motor to convert the energy into electric energy;
B. power-converting device receives the electric energy that the electrical motor in slow/row device brake equipment produces, and electric energy is adjusted and conversion;
C. the broad sense load receives the electric energy after power-converting device adjustment and conversion, and electric energy is stored or utilized.
The broad sense load can comprise closed-center system and finally with electric load etc.When the electric energy after power-converting device adjustment and the conversion was received by closed-center system, power-converting device was controlled the charging valtage and the electric current of closed-center system; Electric energy after described power-converting device adjustment and the conversion is when finally receiving with electric load, and power-converting device is controlled final power supply voltage and electric current with electric load.
Power-converting device may further comprise the steps the adjustment and the conversion of electric energy:
1) transmission of torque process, the lock torque that braking is produced passes to slowly/go the electrical motor in the device brake equipment, the drive motor generation electric energy that generates electricity;
2) DC/DC conversion process, the electric energy that step 1) is produced carries out the voltage and current conversion, when walking or drive slowly the overtension that produces, voltage is carried out step-down handle in the transformation process.
Described power-converting device is made up of power model and control module; Power model is used to adjust the electric energy that produces with switching motor, and electric energy is used for the broad sense load; Control module is controlled by the power component to power model, makes the braking recuperated energy change into electric energy, and is broad sense load-store and utilization.
When control module has been stored up full electric energy at broad sense load closed-center system, automatically switch in the power consumption circuit, discharge the remainder braking kinetic energy.
Realize system for carrying out said process, it is characterized in that this system comprises:
One places the slow/row device brake equipment between automobile gearbox and the transmission shaft, in this slow/row device brake equipment electrical motor is housed, and the kinetic energy when being used to receive automobile brake utilizes the generating of electrical motor to convert the energy into electric energy;
A power-converting device is made up of power model and control module, and power model is used to adjust the electric energy that produces with switching motor, and electric energy is used for the broad sense load; Control module is controlled by the power component to power model, will brake recuperated energy and change into electric energy, and be broad sense load-store and utilization;
A broad sense load is used for storage and utilizes the adjusted electric energy of power-converting device;
Slowly/electrical motor in the row device brake equipment is connected with power-converting device; Power-converting device links to each other with the broad sense load.
Compared with prior art, the present invention has following advantage:
1) for vehicle provides new energy source, the vehicle braking energy that in the past was not used is used, especially increases the accessory feed power supply capacity and have remarkable meaning for automobile;
2), and adopt common electrical generator mode to generate electricity to compare, have advantage simple in structure, that response is fast, be particularly suitable for alternation power driven mode because regenerative brake generating is a kind of kinetic energy to be converted to the generation mode of electric energy.
3) because slow/row device repacking is convenient, be convenient to install and to existing slow/row device brake system transforms;
4) native system is widely used, and can be used for multiple vehicles such as automobile and battery-driven car.
5) slowly/process of row device braking in, adopt suitable control method, can make native system in assisted deceleration, play the effect of generating.
Description of drawings
Fig. 1 is a system construction drawing of the present invention;
Fig. 2 is slow/row device brake equipment scheme of installation, and wherein label is respectively: 1, change speed gear box, 2, universal-joint, 3, slow/row device brake equipment, 4, first transmission shaft, 5, second transmission shaft, 6, supporting seat;
Fig. 3 is schematic circuit diagram of power model (is example with the permanent magnet brushless electromotor) in the power-converting device among the embodiment;
Fig. 4 is the control principle figure of power-converting device among the embodiment.
Below in conjunction with the embodiment that accompanying drawing and contriver provide, the present invention is described in further detail.
The specific embodiment
Referring to Fig. 1～2, according to technical scheme of the present invention, the technology path of present embodiment is:
Slowly/row device brake equipment is connected in series with between the change speed gear box and transmission shaft of automobile, slowly/electrical motor is housed in the row device brake equipment, be connected with power-converting device on the electrical motor, power-converting device includes control module and power model, and overvoltage protective module is arranged on the power model; Load links to each other power-converting device with broad sense, slow/and lock torque drive motor that row device brake equipment utilizes automobile to produce produces electric energy, and stored and utilize.Concrete braking energy reclaims slow method and may further comprise the steps:
A. slow/row device brake power generating device receives the braking automobile lock torque, and braking kinetic energy is realized generating through electrical motor, and braking kinetic energy is changed into electric energy;
B. power-converting device receives the electric energy of slow/row device power generation assembly generation, and electric energy is adjusted and conversion;
C. the broad sense load receives the electric energy after power-converting device adjustment and the conversion, and electric energy is stored or utilized.
The control module of power-converting device is sent instruction, and the power model of power-converting device receives and execution command, and generation, storage and the utilization of electric energy are controlled.
Wherein, control module is controlled generating, charging or power supply process according to sensor signal.
Wherein, control module is that purpose is controlled braking recuperated energy as much as possible is converted into electric energy.
Wherein, the control signal of control module acts on the power device of power model, realizes slowly/control of row device braking energy generating.
Wherein, when control module is stored up full electric energy at closed-center system, disconnect power generation circuit or electric energy is consumed in electric load.
Wherein, comprise in the broad sense load under the situation of closed-center system, power-converting device is controlled the charging valtage and the electric current of closed-center system.
Wherein, comprise final using under the situation of electric load in the broad sense load, power-converting device is controlled final power supply voltage and electric current with electric load.
Wherein, power-converting device may further comprise the steps the adjustment and the conversion of electric energy:
The generating of transmission shaft dragging motor, motor is realized the DC/DC conversion process through the control power circuit, the direct current (DC) that conversion process is produced carries out the voltage and current conversion.The transformation process when walking or drive slowly the overtension that produces, is carried out step-down to voltage and is handled.
Automobile of the present invention is slow/row device braking energy reclaims slow system, be by slowly/the row device converts automobile brake energy to electric energy and for broad sense load use, comprising:
One places the slow/row device brake power generating device between main gearbox and the transmission shaft, and this power generation assembly and automobile main driving axle link, and are used for the braking recuperated energy is converted to electric energy;
A power-converting device is made up of power model and control module, and wherein power model is used to adjust and change the electric energy of slow/row device brake power generating device generation, and electric energy is sent in the broad sense load; Control module is controlled by the power component to power model, makes braking energy as much as possible change into electric energy, and is broad sense load-store and utilization;
A broad sense load is used for storage and utilizes the adjusted electric energy of power-converting device;
Slowly/row device brake power generating device is connected with power-converting device; Power-converting device links to each other with the broad sense load again.
Described broad sense load is closed-center system and finally uses electric load, described closed-center system be various storage batterys, vehicle-mounted accessory feed, super capacitor or flywheel one of them, described final be the combination of resistive loading, inductive load, capacitive load one of them or they with electric load.
Above-mentioned slow/row device brake power generating device is that slow in the original product/row device brake equipment is reequiped, replace original slow/row device with electrical motor, transmission shaft drives electrical motor and rotates, motor is converted into electric energy with braking kinetic energy, power transformation circuit is modulated the electric energy that motor produces by power tube control power circuit, recuperated energy is to closed-center system, and after the energy storage is full, the remainder energy will discharge by the heat radiation circuit.
Slowly/comprise electrical motor, transmission shaft and Hall element in the row device brake power generating device; Motor reel links to each other with transmission shaft, lock torque passes to electrical motor through transmission shaft, and electrical motor can be various DC machine, alternating current dynamo, wheel hub motor etc., electrical motor high-speed operation under moment loading, under the power-converting device modulating action, electrical motor is exported electric energy as electrical generator.
According to the motor terminal voltage formula:
U
e＝U
b+i
b×r
b (2)
U wherein
bBe cell pressure e
dBe counter electromotive force of motor, its value is directly proportional with rotating speed of motor, and when counter electromotive force of motor surpasses motor terminal voltage, at this moment, battery terminal voltage will be lower than motor lines voltage, by the power circuit modulation, and can be to battery charge.U
eBe motor lines voltage, i
bBe charging current, r
bBe accumulator internal resistance, r
dThe machine winding equivalent internal resistance, i
dFor passing through coil current, l
dBe the coil winding inductance.
Power-converting device comprises power model and control module.The power model of power-converting device is the DC/DC changer, the voltage and current of control power circuit output when being used to adjust electrical motor and making electrical generator; In the DC/DC changer device for power switching is arranged, be used for carrying out the instruction that control signal is passed on; Control module comprises: detect speed of a motor vehicle tachogenerator, filter circuit, controller and photoelectric isolating circuit, tachogenerator places slowly/goes on the device brake equipment, is used to obtain the required signal of microprocessor; Controller links to each other with sensor by filter circuit, is used to obtain the signal that sensor obtains, and the output control signal; Control signal is delivered to the control end of the device for power switching of power model through photoelectric isolating circuit.Tachogenerator adopt voltage sensor, current sensor, Hall element and mechanical pick-up device one of them.
Controller adopts wherein a kind of of analog controller, digitial controller and analog digital mixture control, and analog controller comprises the controller that analog controller that discrete component constitutes and programmable analog device constitute; Digitial controller comprises wherein a kind of of micro controller system, ARM, DSP, CPLD or FPGA.
Fig. 2 has provided slowly/has gone device brake power generating device scheme of installation, slowly/row device brake power generating device 3 is arranged between the universal-joint 2 and first transmission shaft 4, slowly/be provided with electrical motor in the row device brake power generating device 3, universal-joint 2 is connected with change speed gear box 1, slowly/row device brake power generating device 3 other ends are connected with universal-joint 2, supporting seat 6 with slowly/capable device brake power generating device 3 is connected.
Fig. 3 has provided the control power circuit of power-converting device among the embodiment.This circuit is become by brushless direct current motor, set of power switches; device for power switching adopts IGBT IPM Intelligent Power Module; module contains essential driving of IGBT and protective circuit; also can adopt MOSFET as power device, control circuit is done the time spent at electrical motor as electrical generator, adopts the modulation system of conducting in twos; following pipe is done the PWM modulation; realize boost chopper, and to the closed-center system charging, closed-center system is lead-acid storage battery or vehicle-mounted accessory feed.
Fig. 4 has provided the control principle figure of power-converting device among the embodiment, and control module is made up of current/voltage sensor, filter circuit, microprocessor, Hall element, driving logic control circuit, photoelectric isolating circuit.Microprocessor adopts the MICROCHIP singlechip chip PIC16F73 of company.Voltage sensor, current sensor all adopt analog control circuit to realize, the current/voltage sensor is used for gathering the voltage and current signal of DC/DC converter output terminal, handle through filter circuit, the A/D port of delivering to micro controller system carries out data acquisition, collection result is after micro controller system is handled, with the form output control signal of PWM.Pwm signal is delivered to the driving circuit of device for power switching via the driver logic control circuit, and the on off state of power tube is controlled.Acquisition of signal and control cycle are 1ms; The PWM modulating frequency is 20KHz.The filter circuit that filter adopts representative type to be built by op amp, photoelectric isolating circuit is realized by photoelectrical coupler.The required various level of control module are from vehicle-borne storage battery power taking, or provide through common DC/DC Switching Power Supply.
Concrete principle of work of the present invention is:
In the automobile brake operational process, lock torque passes to slowly/goes the electrical motor of device brake power generating device through transmission shaft, make the electrical motor high-speed operation, control module is by the pulse duration modulation to the control power circuit, realize that boost chopper is to battery charge, when dutycycle increases, the power tube ON time increases, when being the charging duration growth, by PI or change structure control algorithm, can allow the charging valtage at battery two ends maintain a certain setting value, and this setting value can be set by test or adaptive algorithm.The principle of setting this value is to make more braking recuperated energy be converted into electric energy, and monitor by measuring battery charge voltage and charging current, when storage battery was full of, controller stopped storage battery being charged, and the remainder braking energy is discharged in the heat radiation circuit.
In automobile driven process, device for power switching all is in closed condition, motor this moment recuperated energy not.
Though with reference to case discuss be used for the reclaiming braking energy from automobile retarder system, but should understand, the configuration of the structure detail of reclaiming braking energy from automobile retarder system and each parts and element is not limited to situation described in the embodiment, thereby is not deviating from various changes and the distortion that claim scope of the present invention can be made.
For example, the power model DC/DC changer of power-converting device and relevant interface circuit and necessary potential device.
For example, the power device of power-converting device adopts various widely used devices, includes but not limited to power transistor GTR, metal-oxide-semiconductor field effect transistor MOSFET, insulated gate bipolar transistor IGBT and gate turn off thyristor GTO.
For example, closed-center system comprises the multiple closed-center system that extensively adopts, as various storage batterys or super capacitor or flywheel.
For example, the circuit that control module adopts of power-converting device includes but not limited to analogous circuit, digital circuit, and wherein digital circuit includes but not limited to micro controller system, DSP, CPLD or FPGA.
For example, the control module of power-converting device is controlled calculating according to the signal of sensor.Used sensor comprises voltage sensor, current sensor, is also included within the mechanical pick-up device that adopts in some application.
Though showed and described the reclaiming braking energy from automobile retarder system of this example, wherein, slowly/row device brake power generating device places between automobile main gearbox and the transmission shaft, be used for automobile brake energy is converted to electric energy, but should understand, utilize the recovery of slow/row device through electrical motor realization energy, slow/row device brake power generating Unit Installation position can be not limited between change-speed box and the transmission shaft.Slowly/row device brake power generating device also can be installed on other position of transmission shaft.
Though, the invention is not restricted to example described above and example above to have described the present invention with reference to certain embodiments and example of the present invention.According to know-why of the present invention, those of ordinary skills make amendment to the foregoing description and are out of shape according to above-mentioned know-why and all belong to protection scope of the present invention.
Claims (13)
1. method for reclaiming braking energy from automobile retarder, utilize automobile slow/energy recovery generating that the braking of row device produces, with slowly/row device brake power generating device is connected in series with between the change speed gear box and transmission shaft of automobile, slowly/electrical motor is arranged in the row device brake power generating device, be connected with power-converting device on the electrical motor, power-converting device includes control module and power model, and overvoltage protective module is arranged on the power model; Load links to each other power-converting device with broad sense, described broad sense load comprises closed-center system and energy-dissipating device, slowly/lock torque drive motor that row device brake power generating device utilizes automobile to produce produces electric energy, and stored and utilized, when closed-center system stored up full electric energy, dump energy consumed in energy-dissipating device.
2. the method for claim 1 is characterized in that, described slow/row device brake equipment energy recovery generating may further comprise the steps:
Kinetic energy when the electrical motor in a. slow/row device brake power generating device receives automobile brake, and this kinetic energy changed into electric energy;
B. power-converting device receives the electric energy that the electrical motor in slow/row device brake power generating device produces, and electric energy is adjusted and conversion;
C. the broad sense load receives the electric energy after power-converting device adjustment and conversion, and electric energy is stored or utilized; Described broad sense load comprises closed-center system and energy-dissipating device, and when closed-center system stored up full electric energy, dump energy consumed in energy-dissipating device;
Described power-converting device is made up of power model and control module; Power model is used to adjust the electric energy that produces with switching motor, and electric energy is used for the broad sense load; Control module is controlled by the power component to power model, makes the braking recuperated energy change into electric energy, and is broad sense load-store and utilization.
3. the method for claim 1 is characterized in that, when the electric energy after described power-converting device adjustment and the conversion was received by closed-center system, power-converting device was controlled the charging valtage and the electric current of energy storage tubulature; When the electric energy after described power-converting device adjustment and the conversion was received by energy-dissipating device, power-converting device was controlled the power supply voltage and the electric current of energy-dissipating device.
4. method as claimed in claim 1 or 2 is characterized in that: described power-converting device may further comprise the steps the adjustment and the conversion of electric energy:
1) transmission of torque process, the lock torque that braking is produced passes to slowly/go the electrical motor in the device brake power generating device, the dragging motor generation electric energy that generates electricity;
2) DC/DC conversion process, the electric energy that step 1) is produced carries out the voltage and current conversion, when walking or drive slowly the overtension that produces, voltage is carried out step-down handle in the transformation process.
5. a reclaiming braking energy from automobile retarder system is characterized in that, this system comprises:
One places the slow/row device brake power generating device between automobile gearbox and the transmission shaft, in this slow/row device brake power generating device electrical motor is housed, the kinetic energy when being used to receive automobile brake, and utilize the generating of electrical motor to convert the energy into electric energy;
A power-converting device is made up of power model and control module, and power model is used to adjust the electric energy that produces with switching motor, and electric energy is used for the broad sense load; Control module is controlled by the power component to power model, will brake recuperated energy and change into electric energy, and be broad sense load-store and utilization;
A broad sense load is used for storage and utilizes the adjusted electric energy of power-converting device; Described broad sense load comprises closed-center system and energy-dissipating device;
Electrical motor is connected with power-converting device; Power-converting device links to each other with the broad sense load, when the electric energy after power-converting device adjustment and the conversion is received by the broad sense load, power-converting device is controlled the power supply voltage and the electric current of broad sense load, and when closed-center system stored up full electric energy, dump energy consumed in energy-dissipating device.
6. system as claimed in claim 5 is characterized in that, described slow/row device brake power generating device comprises electrical motor, transmission shaft and Hall element; Motor reel links to each other with transmission shaft, and lock torque passes to electrical motor by transmission shaft, and electrical motor is high-speed operation under moment loading, under the power-converting device modulating action, electrical motor is exported electric energy as electrical generator.
7. system as claimed in claim 5, it is characterized in that, described closed-center system be various storage batterys, vehicle-mounted accessory feed, super capacitor or flywheel one of them, described energy-dissipating device is the combination of resistive loading, inductive load, capacitive load one of them or they.
8. system as claimed in claim 5 is characterized in that, described slow/row device brake power generating equipment mechanism is one of mechanical type, fluid pressure type, pneumatic type, micro electromechanical structure or their various unitized constructions.
9. system as claimed in claim 5 is characterized in that, described slow/electrical motor in the row device brake power generating device is various DC machine, alternating current dynamo or wheel hub motor.
10. system as claimed in claim 5 is characterized in that, the power model of described power-converting device is the DC/DC changer, and motor reel links to each other with transmission shaft, is used for converting the moment that transmission shaft produces to electrical motor kinetic energy; The DC/DC changer is connected with electrical motor, the voltage and current of control power circuit output when being used to adjust electrical motor and making electrical generator; Device for power switching is used for carrying out the instruction that control signal is passed in the DC/DC changer.
11. system as claimed in claim 5, it is characterized in that, the control module of described power-converting device comprises: detect speed of a motor vehicle tachogenerator, filter circuit, controller and photoelectric isolating circuit, tachogenerator places slowly/goes on the device brake power generating device, is used to obtain the required signal of microprocessor; Controller links to each other with sensor by filter circuit, is used to obtain the signal that sensor obtains, and the output control signal; Control signal is delivered to the control end of the device for power switching of power model through photoelectric isolating circuit.
12. system as claimed in claim 11, it is characterized in that, described controller adopts wherein a kind of of analog controller, digitial controller and analog digital mixture control, and analog controller comprises the controller that analog controller that discrete component constitutes and programmable analog device constitute; Digitial controller comprises wherein a kind of of micro controller system, ARM, DSP, CPLD and FPGA;
Described tachogenerator adopt voltage sensor, current sensor, Hall element or mechanical pick-up device one of them;
Described device for power switching adopt power transistor GTR, metal monooxide semiconductor type field effect transistor M OSFET, insulated gate bipolar transistor IGBT and gate turn off thyristor GT0 one of them.
13. system as claimed in claim 12 is characterized in that: described DC/DC changer can adopt Buck, Boost, Cuk, Forward and Flyback circuit one of them or its combination.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610041981XA CN100537292C (en) | 2006-03-27 | 2006-03-27 | Method for reclaiming braking energy from automobile retarder and system thereof |
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| CNB200610041981XA CN100537292C (en) | 2006-03-27 | 2006-03-27 | Method for reclaiming braking energy from automobile retarder and system thereof |
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| CN100537292C true CN100537292C (en) | 2009-09-09 |
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Families Citing this family (11)
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| CN103448545B (en) * | 2013-09-12 | 2016-09-14 | 南京奥特佳新能源科技有限公司 | Automobile-used energy regenerating based on wheel axle generator and Application way |
| CN111572356B (en) * | 2014-11-12 | 2022-06-10 | 深圳市大疆创新科技有限公司 | Method and system for recovering motor power of movable object |
| CN104494462B (en) * | 2014-12-12 | 2016-11-30 | 山东理工大学 | Electric automobile driving electric motor control |
| CN104691343B (en) * | 2015-03-10 | 2017-04-12 | 河北联合大学 | Braking system of electric locomotive based on high-power inverter |
| CN104723887B (en) * | 2015-03-16 | 2017-01-04 | 王玮 | The auxiliary brake of towed vehicle and towed vehicle |
| CN106809020B (en) * | 2015-11-30 | 2019-06-11 | 北汽福田汽车股份有限公司 | Auxiliary braking method, system and vehicle |
| CN108944465B (en) * | 2018-06-27 | 2020-07-28 | 潍柴动力股份有限公司 | Slow-speed power generation device and trailer |
| CN111516228B (en) * | 2019-02-01 | 2022-01-21 | 恩格尔机械(上海)有限公司 | Method for operating a molding machine and molding machine |
| CN109733202A (en) * | 2019-02-27 | 2019-05-10 | 广州工程技术职业学院 | Brake energy recovering system and its application method |
| CN112865272A (en) * | 2019-11-27 | 2021-05-28 | 株洲中车时代电气股份有限公司 | Power generation system and power generation method for multi-source railway wagon |
| CN113103877A (en) * | 2021-05-21 | 2021-07-13 | 嘉兴鲁棒实特车辆智能科技有限公司 | Electric retarder system and automobile |
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