CN102723766A - Power storage range extender of electric vehicle - Google Patents
Power storage range extender of electric vehicle Download PDFInfo
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- CN102723766A CN102723766A CN2012101809724A CN201210180972A CN102723766A CN 102723766 A CN102723766 A CN 102723766A CN 2012101809724 A CN2012101809724 A CN 2012101809724A CN 201210180972 A CN201210180972 A CN 201210180972A CN 102723766 A CN102723766 A CN 102723766A
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- electric machine
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The invention discloses a power storage range extender of an electric vehicle and belongs to the field of vehicles. The power storage range extender comprises a range extender assembly, wherein the range extender assembly comprises a range extender power storage unit; the first end of the range extender power storage unit is used for being connected with the positive power end of a motor controller; and the second end of the range extender power storage unit is used for being connected with the negative power end of the motor controller. When a brake pedal is used for braking, a corresponding brake switch outputs a brake signal to the motor controller, the motor controller controls a vehicle motor to change from a power driven state to a power generation state, and electric energy generated by the vehicle motor in the power generation state is subjected to boosting and current limiting through the motor controller and then is input to the range extender power storage unit so as to charge the range extender power storage unit. According to the power storage range extender, the electric energy generated by the vehicle motor in the power generation state is made full use of, the energy utilization rate is increased and the vehicle driving distance is prolonged.
Description
Technical field
The present invention relates to vehicle electric power storage distance increasing unit, especially a kind of vehicle electric power storage distance increasing unit that has improved energy utilization rate and increased the motor vehicle distance travelled.
Background technology
The current fuel engines automobile that generally uses exists various drawbacks, and is low, seriously polluted etc. such as capacity usage ratio.Along with people's is to the understanding of energy-conserving and environment-protective, and electric automobile more and more receives people's attention.Yet, receive the restriction of storage battery electric power storage ability, than fuel-engined vehicle, there is the shortcoming that distance travelled is short and cost is high in pure electric automobile, the great inconvenience of bringing for people's trip.
Summary of the invention
The purpose of this invention is to provide a kind of motor vehicle electric power storage distance increasing unit, made full use of the electric energy that vehicular electric machine sends under generating state, improved energy utilization rate, increased the distance travelled of vehicle.
To achieve these goals; The invention provides a kind of motor vehicle electric power storage distance increasing unit; It is characterized in that: comprise increasing the journey assembly; This increases the journey assembly and comprises and increase the journey electricity accumulating unit; This first end that increases the journey electricity accumulating unit is used to connect the positive power source terminal of this electric machine controller, and this second end that increases the journey electricity accumulating unit is used to connect the negative power end of this electric machine controller: brake switch action output brake signal corresponding when brake pedal is braked is given this electric machine controller, and this motor controller controls vehicular electric machine converts generating state into by motoring condition; The electric energy that vehicular electric machine sends under generating state inputs to this and increases the journey electricity accumulating unit after electric machine controller boosts current limliting, increase the charging of journey electricity accumulating unit to this.
This motor vehicle electric power storage distance increasing unit also comprises first diode and second diode, and wherein the positive pole of this first diode is used to connect vehicle power supply, and negative pole is used to connect the positive power source terminal of electric machine controller; The positive pole of this second diode connects this and increases the positive pole of journey electricity accumulating unit, and negative pole connects the positive power source terminal of this electric machine controller.
This motor vehicle electric power storage distance increasing unit also comprises power switch pipe and control circuit, and wherein this power switch pipe positive power source terminal and this of being arranged on this electric machine controller increases between the positive pole of journey electricity accumulating unit; This control circuit brake signal that corresponding brake switch sends when being used to be received in the brake pedal braking, and according to this this power switch pipe conducting of brake signal control.
This power switch pipe is selected MOSFET pipe for use, and wherein the source electrode of this MOSFET pipe connects this and increases the positive pole of journey electricity accumulating unit, and drain electrode connects the positive power source terminal of this electric machine controller, and grid connects this control circuit.
This motor vehicle electric power storage distance increasing unit also comprises current sensor, and this current sensor is used to detect the current value that inputs to this electric machine controller and this current value is transferred to control circuit.
This motor vehicle electric power storage distance increasing unit also comprises display, and this control circuit is used for the current value that arrives according to this current sensor senses, calculates the performance number of this vehicular electric machine and this performance number is transferred to this display;
This display is used for the magnitude of voltage that shows vehicle power supply respectively, increase the journey electricity accumulating unit, and shows the performance number of this vehicular electric machine: when this performance number on the occasion of the time represent that this vehicular electric machine is in motoring condition; When this performance number representes that this vehicular electric machine is in generating state during for negative value.
This increases the journey assembly and also comprises charger, electricity accumulating unit manager and plug; Wherein this plug is used to connect extraneous power supply; This charger is used to realize that extraneous power supply increases journey electricity accumulating unit charging to this, and this electricity accumulating unit manager is used to gather this and increases discharging and recharging parameter and discharge and recharge parameter according to this working status parameter of charger being regulated of journey electricity accumulating unit.
In sum, owing to adopted technique scheme, the invention has the beneficial effects as follows:
1, because in the electric automobile braking procedure; Motor controller controls vehicular electric machine M converts generating state into from motoring condition, and the present invention connects one at the two ends of electric machine controller and increases the journey electricity accumulating unit, when vehicular electric machine M is in generating state; The electric energy that electric machine controller sends vehicular electric machine M boosts and inputs to this after the current limliting and increase the journey electricity accumulating unit; To increasing the charging of journey electricity accumulating unit, improved rate of energy, increased the distance travelled of vehicle;
2, vehicle power supply and the positive pole that increases the journey electricity accumulating unit all are connected the positive power source terminal of electric machine controller through a diode; When guaranteeing that vehicular electric machine M is in motoring condition; Vehicle power supply with increase two groups of power sources of journey electricity accumulating unit and to this electric machine controller power supply be provided simultaneously; And the electric current that the little power source of internal resistance provides is bigger, like this one group of big power source of internal resistance is had the effect that increases the service life; In addition, because the unidirectional conduction of diode is isolated between two groups of power sources each other, can not charge each other;
3, adopt power switch pipe and control circuit; When automobile brake; Brake switch sends brake signal and gives this control circuit; This controller circuitry is according to this brake signal power controlling switching tube conducting, between the positive power source terminal of this electric machine controller and this positive pole that increases the journey electricity accumulating unit, a power switch pipe is set, and makes in the time also guaranteeing vehicular electric machine at generating state under the prerequisite that second diode exists, to increase the charging of journey electricity accumulating unit to this;
4, adopt the current value of current sensor senses electric machine controller, when current value representes that vehicular electric machine M is in generating state during for negative value; When current value on the occasion of the time represent that vehicular electric machine M is in motoring condition;
5, control circuit according to current sensor senses to current value calculate the performance number of this vehicular electric machine; And by this performance number of display demonstration; This display also shows vehicle power supply, increases the magnitude of voltage of journey electricity accumulating unit, thereby good man computer interface is provided for human pilot;
6, this increases the journey assembly and also comprises charger, electricity accumulating unit manager and plug, has realized that thus extraneous power supply increases the charging of journey electricity accumulating unit to this.
Description of drawings
The present invention will explain through example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is circuit theory diagrams of the present invention;
Fig. 2 is the circuit theory diagrams of the first embodiment of the present invention.
Embodiment
Disclosed all characteristics in this specification, or the step in disclosed all methods or the process except mutually exclusive characteristic and/or the step, all can make up by any way.
Disclosed arbitrary characteristic in this specification (comprising any accessory claim, summary and accompanying drawing) is only if special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, only if special narration, each characteristic is an example in a series of equivalences or the similar characteristics.
As shown in Figure 1; In electric automobile, have vehicle power supply, electric machine controller, vehicular electric machine M, brake pedal and brake switch usually; Wherein the positive pole of vehicle power supply is used to connect the positive power source terminal of this electric machine controller and the negative power end that negative pole connects this electric machine controller; This electric machine controller is used to control the switching of vehicular electric machine M between motoring condition and generating state: brake switch output brake signal corresponding when brake pedal is braked is given this electric machine controller, and this motor controller controls vehicular electric machine M converts generating state into by motoring condition.This brake signal can be high level or low level.It should be noted: vehicle power supply can be storage battery, fuel cell, super capacitor group etc. among the present invention.
This motor vehicle electric power storage distance increasing unit comprises and increases journey assembly, the first diode D1, the second diode D2, power switch pipe Q, control circuit, current sensor and display, and this increases the journey assembly and comprises and increase journey electricity accumulating unit, charger, battery manager and plug.This first end that increases the journey electricity accumulating unit is used to connect the positive power source terminal of this electric machine controller; This second end that increases the journey electricity accumulating unit is used to connect the negative power end of this electric machine controller: brake switch output brake signal corresponding when brake pedal is braked is given this electric machine controller; This motor controller controls vehicular electric machine M converts generating state into by motoring condition; The electric energy that vehicular electric machine M sends under generating state inputs to this and increases the journey electricity accumulating unit after electric machine controller boosts current limliting, thereby realizes that vehicular electric machine M increases the charging of journey electricity accumulating unit to this under generating state.The present invention has made full use of the electric energy that vehicular electric machine sends under generating state, improved rate of energy, and the energy feedback adds the external charge above VMT Vehicle-Miles of Travel that can double.
The positive pole of the first diode D1 is used to connect the positive pole of this vehicle power supply in this vehicle electric power storage distance increasing unit, and negative pole is used to connect the positive power source terminal of electric machine controller; The positive pole of this second diode D2 is used to connect first end that this increases the journey electricity accumulating unit, and negative pole connects the positive power source terminal of this electric machine controller.When this vehicle electric power storage distance increasing unit is connected with electric automobile; Vehicle power supply with increase these two groups of power sources of journey electricity accumulating unit according to or the door mode; To electric machine controller power supply is provided simultaneously; The input current of electric machine controller is the electric current sum that two groups of power sources provide, and the electric current that the little power source of internal resistance provides is bigger, like this one group of big power source of internal resistance is had the effect that increases the service life; In addition, because the unidirectional conduction of diode is isolated between two groups of power sources each other, can not charge each other.
Power switch pipe is arranged between the positive power source terminal and this first end that increases the journey electricity accumulating unit of electric machine controller in this vehicle electric power storage distance increasing unit; And this control circuit brake signal that corresponding brake switch sends when being used to be received in the brake pedal braking; And, make to guarantee under the prerequisite that the second diode D2 exists to realize that vehicular electric machine increases the charging of journey electricity accumulating unit to this under generating state according to this this power switch pipe conducting of brake signal control.
Current sensor is used to detect the current value that inputs to electric machine controller in this vehicle electric power storage distance increasing unit, promptly vehicle power supply with increase the electric current sum that two groups of power sources of journey electricity accumulating unit provide: when current value representes that vehicular electric machine M is in generating state during for negative value; When current value on the occasion of the time represent that vehicular electric machine M is in motoring condition.This current sensor is transferred to control circuit with detected current value, and this control circuit calculates the performance number of this vehicular electric machine and this performance number is transferred to this display according to the current value that this current sensor senses arrives; The performance number that shows this vehicular electric machine by this display: when this performance number on the occasion of the time represent that this vehicular electric machine M is in motoring condition, show the electric power value of vehicular electric machine M on the display; When this performance number representes that this vehicular electric machine is in generating state during for negative value, show the generated output value (promptly feeding back to the performance number that increases the journey electricity accumulating unit) of vehicular electric machine M on the display.In addition, this display also is used to the magnitude of voltage that shows vehicle power supply, increase the journey electricity accumulating unit, thereby good man computer interface is provided for the automobile driver.
It should be noted: above-mentioned control circuit is mainly realized power switch tube drives and these two functions of performance number calculating; Those skilled in the art are easy to expect how building circuit and realize this two functions; Such as multiple modes such as employing drive circuit and single machine combination, so the present invention does not do specific descriptions to the structure of this control circuit.
This vehicle electric power storage distance increasing unit increase that plug is used for being connected with extraneous power supply in the journey assembly; Charger is used to realize that extraneous power supply increases journey electricity accumulating unit charging to this, and this electricity accumulating unit manager is used to gather this and increases discharging and recharging parameter and discharge and recharge parameter according to this working status parameter of charger being regulated of journey electricity accumulating unit.Thus, increase the journey electricity accumulating unit and not only can realize charging, but also can realize charging by extraneous power supply by vehicular electric machine.Because the charging process of electricity accumulating unit is a technology well known to those skilled in the art, thereby this charging process is not done detailed description at this.
In the first embodiment of the present invention, this increases the journey electricity accumulating unit and selects batteries for use, and this power switch pipe is selected the MOSFET pipe for use, and this current sensor adopts the current sensor of the magnetic balance type of positive-negative power supply.The positive pole of this batteries connects the source electrode of this MOSFET pipe, and the drain electrode of this MOSFET pipe is through the positive power source terminal of this current sensor connection electric machine controller, and the grid of this MOSFET pipe connects this control circuit.
Certainly, this increases the journey electricity accumulating unit except adopting batteries, can also adopt super capacitor group etc. to have the device of storage function; This power switch pipe can also adopt IGBT module constant power pipe except adopting the MOSFET pipe.
The present invention is not limited to aforesaid embodiment.The present invention expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (7)
1. motor vehicle electric power storage distance increasing unit; It is characterized in that: comprise increasing the journey assembly; This increases the journey assembly and comprises and increase the journey electricity accumulating unit; This first end that increases the journey electricity accumulating unit is used to connect the positive power source terminal of this electric machine controller, and this second end that increases the journey electricity accumulating unit is used to connect the negative power end of this electric machine controller: brake switch action output brake signal corresponding when brake pedal is braked is given this electric machine controller, and this motor controller controls vehicular electric machine converts generating state into by motoring condition; The electric energy that vehicular electric machine sends under generating state inputs to this and increases the journey electricity accumulating unit after electric machine controller boosts current limliting, increase the charging of journey electricity accumulating unit to this.
2. motor vehicle electric power storage distance increasing unit according to claim 1 is characterized in that: also comprise first diode and second diode, wherein the positive pole of this first diode is used to connect vehicle power supply, and negative pole is used to connect the positive power source terminal of electric machine controller; The positive pole of this second diode connects this and increases the positive pole of journey electricity accumulating unit, and negative pole connects the positive power source terminal of this electric machine controller.
3. motor vehicle electric power storage distance increasing unit according to claim 2 is characterized in that: also comprise power switch pipe and control circuit, wherein this power switch pipe positive power source terminal and this of being arranged on this electric machine controller increases between the positive pole of journey electricity accumulating unit; This control circuit brake signal that corresponding brake switch sends when being used to be received in the brake pedal braking, and according to this this power switch pipe conducting of brake signal control.
4. motor vehicle electric power storage distance increasing unit according to claim 3; It is characterized in that: this power switch pipe is selected the MOSFET pipe for use; Wherein the source electrode of this MOSFET pipe connects this and increases the positive pole of journey electricity accumulating unit, and drain electrode connects the positive power source terminal of this electric machine controller, and grid connects this control circuit.
5. motor vehicle electric power storage distance increasing unit according to claim 1 and 2 is characterized in that: also comprise current sensor, this current sensor is used to detect the current value that inputs to this electric machine controller and this current value is transferred to control circuit.
6. motor vehicle electric power storage distance increasing unit according to claim 5; It is characterized in that: also comprise display; This control circuit is used for the current value that arrives according to this current sensor senses, calculates the performance number of this vehicular electric machine and this performance number is transferred to this display;
This display is used for the magnitude of voltage that shows vehicle power supply respectively, increase the journey electricity accumulating unit, and shows the performance number of this vehicular electric machine: when this performance number on the occasion of the time represent that this vehicular electric machine is in motoring condition; When this performance number representes that this vehicular electric machine is in generating state during for negative value.
7. motor vehicle electric power storage distance increasing unit according to claim 1; It is characterized in that: this increases the journey assembly and also comprises charger, electricity accumulating unit manager and plug; Wherein this plug is used to connect extraneous power supply; This charger is used to realize that extraneous power supply increases journey electricity accumulating unit charging to this, and this electricity accumulating unit manager is used to gather this and increases discharging and recharging parameter and discharge and recharge parameter according to this working status parameter of charger being regulated of journey electricity accumulating unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101809724A CN102723766A (en) | 2012-06-04 | 2012-06-04 | Power storage range extender of electric vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101809724A CN102723766A (en) | 2012-06-04 | 2012-06-04 | Power storage range extender of electric vehicle |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011072564A1 (en) * | 2009-12-16 | 2011-06-23 | 奇瑞汽车股份有限公司 | Electric vehicle range extender control system and control method thereof |
| CN102180087A (en) * | 2011-04-14 | 2011-09-14 | 武汉理工大学 | Hybrid power system with vehicle-mounted fuel cells and lithium cells in direct parallel connection |
| CN202080273U (en) * | 2011-03-30 | 2011-12-21 | 重庆长安汽车股份有限公司 | Energy management system of battery electric vehicle |
| CN202651864U (en) * | 2012-06-04 | 2013-01-02 | 重庆小康工业集团股份有限公司 | Electric vehicle power-storing and range-extending device |
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2012
- 2012-06-04 CN CN2012101809724A patent/CN102723766A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011072564A1 (en) * | 2009-12-16 | 2011-06-23 | 奇瑞汽车股份有限公司 | Electric vehicle range extender control system and control method thereof |
| CN202080273U (en) * | 2011-03-30 | 2011-12-21 | 重庆长安汽车股份有限公司 | Energy management system of battery electric vehicle |
| CN102180087A (en) * | 2011-04-14 | 2011-09-14 | 武汉理工大学 | Hybrid power system with vehicle-mounted fuel cells and lithium cells in direct parallel connection |
| CN202651864U (en) * | 2012-06-04 | 2013-01-02 | 重庆小康工业集团股份有限公司 | Electric vehicle power-storing and range-extending device |
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Application publication date: 20121010 Assignee: Chongqing Ruichi Auto Industrial Co., Ltd. Assignor: Chongqing Xiaokang Industry Group Co., Ltd. Contract record no.: 2012500000092 Denomination of invention: Power storage range extender of electric vehicle License type: Exclusive License Record date: 20121203 |
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Application publication date: 20121010 |