CN106564491B - Energy management system of plug-in hybrid electric vehicle - Google Patents
Energy management system of plug-in hybrid electric vehicle Download PDFInfo
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- CN106564491B CN106564491B CN201610915498.3A CN201610915498A CN106564491B CN 106564491 B CN106564491 B CN 106564491B CN 201610915498 A CN201610915498 A CN 201610915498A CN 106564491 B CN106564491 B CN 106564491B
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- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 238000001514 detection method Methods 0.000 claims description 42
- 230000005611 electricity Effects 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000011897 real-time detection Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000003137 locomotive effect Effects 0.000 description 2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
- B60W30/18—Propelling the vehicle
- B60W30/18009—Propelling the vehicle related to particular drive situations
- B60W30/18109—Braking
- B60W30/18127—Regenerative braking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/24—Energy storage means
- B60W2510/242—Energy storage means for electrical energy
- B60W2510/244—Charge state
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2540/00—Input parameters relating to occupants
- B60W2540/10—Accelerator pedal position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W2540/00—Input parameters relating to occupants
- B60W2540/12—Brake pedal position
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The invention discloses an energy management system of a plug-in hybrid electric vehicle, which comprises a controller, a first motor, a second motor, a third motor, a fourth motor, an inverter, a storage battery, an engine, an accelerator opening sensor, a battery information collection unit and a brake pedal position sensor. The first motor is in transmission connection with the first wheel and is used for driving or braking the first wheel; the second motor is in transmission connection with the second wheel and is used for driving or braking the second wheel; the third motor is in transmission connection with a third wheel and is used for driving or braking the third wheel; and the fourth motor is in transmission connection with the fourth wheel and is used for driving or braking the fourth wheel. The inverter is electrically connected with the storage battery, the first motor, the second motor, the third motor and the fourth motor and is used for improving the power supply voltage of the first motor, the second motor, the third motor and the fourth motor. The invention can recover the braking energy to the maximum extent and improve the energy-saving effect.
Description
Technical Field
The invention relates to the technical field of hybrid electric vehicles, in particular to an energy management system of a plug-in hybrid electric vehicle.
Background
The hybrid electric vehicle is an electric vehicle which is provided with more than two power sources, comprises a motor for driving and accords with road traffic and safety regulations of the vehicle, the vehicle-mounted power sources comprise various storage batteries, fuel cells, solar cells and generator sets of internal combustion locomotives, and the current hybrid electric vehicle is an electric vehicle which is generally a generator of the internal combustion locomotive and added with the storage batteries.
In the prior art, the energy of the hybrid electric vehicle is managed only according to the amount of electric quantity in the storage battery, and the energy of the hybrid electric vehicle cannot be accurately managed, so that the utilization rate of the energy is low.
SUMMERY OF THE UTILITY MODEL
Based on the technical problems in the background art, the invention provides an energy management system of a plug-in hybrid electric vehicle.
The invention provides an energy management system of a plug-in hybrid electric vehicle, which comprises a controller, a first motor, a second motor, a third motor, a fourth motor, an inverter, a storage battery, an engine, an accelerator opening sensor, a battery information collection unit and a brake pedal position sensor, wherein the controller is connected with the first motor and the second motor;
the first motor is in transmission connection with the first wheel and is used for driving or braking the first wheel; the second motor is in transmission connection with the second wheel and is used for driving or braking the second wheel; the third motor is in transmission connection with a third wheel and is used for driving or braking the third wheel; the fourth motor is in transmission connection with a fourth wheel and is used for driving or braking the fourth wheel;
the inverter is electrically connected with the storage battery, the first motor, the second motor, the third motor and the fourth motor and is used for improving the power supply voltage of the first motor, the second motor, the third motor and the fourth motor;
the engine is in transmission connection with the generator and is used for driving the generator rotor to rotate; the generator is electrically connected with the storage battery and is used for charging the storage battery;
the controller is electrically connected with the accelerator opening sensor and used for acquiring a detection value of the accelerator opening sensor;
the battery information collection unit is used for detecting the electric quantity information of the storage battery, and the controller is electrically connected with the battery information collection unit and used for acquiring the detection value of the battery information collection unit;
the controller is electrically connected with the brake pedal position sensor and used for acquiring the detection result of the brake pedal position sensor.
Preferably, a first electric quantity value and a second electric quantity value are preset in the controller, the first electric quantity value is smaller than the second electric quantity value, and the controller compares the acquired detection value of the battery information collection unit with the first electric quantity value and the second electric quantity value respectively; the controller is used for controlling the engine to start when the detection value of the battery information collection unit is smaller than a first electric quantity value, and the generator works under the driving of the engine and supplies power to the storage battery; the controller is used for controlling the engine to stop working when the detection value of the battery information collection unit is larger than the second electric quantity value.
Preferably, a plurality of throttle opening values are preset in the controller, and the controller is used for comparing the detection result of the throttle opening sensor with each throttle opening value and controlling the rotating speed of the first motor, the second motor, the third motor and the fourth motor according to the comparison result.
Preferably, the rotating speeds of the first motor, the second motor, the third motor and the fourth motor are all linearly related to the throttle opening value.
Preferably, a brake pedal position value is preset in the controller, and the controller is used for controlling the storage battery to stop supplying power to the first motor, the second motor, the third motor and the fourth motor when the detection result of the brake pedal position sensor is smaller than the brake pedal position value; the first motor, the second motor, the third motor and the fourth motor rotate under the driving of the wheels and generate electricity; the controller is used for controlling the first motor, the second motor, the third motor and the fourth motor to rotate reversely to brake each wheel when the detection result of the brake pedal position sensor is larger than or equal to the brake pedal position value.
Preferably, the first motor, the second motor, the third motor and the fourth motor are all speed-adjustable motors.
Preferably, the first motor, the second motor, the third motor and the fourth motor are in transmission connection with corresponding wheels through speed reducing mechanisms.
Preferably, the speed reducing mechanisms are all gear pairs.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides an energy management system of a plug-in hybrid electric vehicle, wherein a controller acquires a detection result of a battery information collection unit, compares the detection result with a first electric quantity value and a second electric quantity value preset in the controller, and controls the working states of an engine, a first motor, a second motor, a third motor and a fourth motor according to the comparison result, so that when the electric quantity of a battery is smaller than the first electric quantity value, the engine is controlled to work, the engine supplies energy to the vehicle, the first motor, the second motor, the third motor and the fourth motor are driven to work, the first motor, the second motor, the third motor and the fourth motor generate electricity and charge the battery, in addition, the controller compares the detection result of a brake pedal position sensor with a preset brake pedal position value, and controls the first motor, the second motor, the third motor and the fourth motor to generate electricity and charge the battery according to the comparison result, The working states of the third motor and the fourth motor ensure that the first motor, the second motor, the third motor and the fourth motor generate electricity in the braking process, the braking energy can be recovered to the maximum extent, and the energy-saving effect is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic structural diagram of the control system of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the following detailed description of the embodiments is provided with reference to the accompanying drawings.
As shown in fig. 1-2, fig. 1 is a schematic structural diagram of the present invention, and fig. 2 is a schematic structural diagram of a control system of the present invention. An energy management system of a plug-in hybrid electric vehicle comprises a controller, a first motor 1, a second motor 2, a third motor 3, a fourth motor 4, an inverter 5, a storage battery 6, an engine 7, an accelerator opening sensor, a battery information collection unit and a brake pedal position sensor;
the first motor 1 is in transmission connection with a first wheel 9 and is used for driving or braking the first wheel 9; the second motor 2 is in transmission connection with a second wheel 10 and is used for driving or braking the second wheel 10; the third motor 3 is in transmission connection with a third wheel 11 and is used for driving or braking the third wheel 11; the fourth motor 4 is in transmission connection with a fourth wheel 12 and is used for driving or braking the fourth wheel 12;
the inverter 5 is electrically connected with the storage battery 6, the first motor 1, the second motor 2, the third motor 3 and the fourth motor 4 and is used for increasing the power supply voltage of the first motor 1, the second motor 2, the third motor 3 and the fourth motor 4;
the engine 7 is in transmission connection with the generator 8 and is used for driving a rotor of the generator 8 to rotate; the generator 8 is electrically connected with the storage battery 6 and is used for charging the storage battery 6;
the controller is electrically connected with the accelerator opening sensor and used for acquiring a detection value of the accelerator opening sensor;
the battery information collection unit is used for detecting the electric quantity information of the storage battery 6, and the controller is electrically connected with the battery information collection unit and used for acquiring the detection value of the battery information collection unit;
the brake pedal position sensor is used for detecting the brake pedal position of the plug-in hybrid electric vehicle, the controller is electrically connected with the brake pedal position sensor, and the controller is used for acquiring the detection result of the brake pedal position sensor.
In this embodiment, a first electric quantity value and a second electric quantity value are preset in the controller, the first electric quantity value is smaller than the second electric quantity value, and the controller compares the acquired detection value of the battery information collection unit with the first electric quantity value and the second electric quantity value respectively; the controller is used for controlling the engine 7 to start when the detection value of the battery information collection unit is smaller than a first electric quantity value, and the generator 8 works under the driving of the engine 7 and supplies power to the storage battery 6; the controller is used for controlling the engine to stop working when the detection value of the battery information collection unit is larger than the second electric quantity value. Thus, the energy source of the hybrid electric vehicle can be controlled through the electric quantity information of the storage battery 6, and the energy of the engine can be saved to the maximum extent.
In the present embodiment, a plurality of accelerator opening values are preset in the controller, and the controller is configured to compare the detection result of the accelerator opening sensor with each accelerator opening value, and control the rotation speeds of the first motor 1, the second motor 2, the third motor 3, and the fourth motor 4 according to the comparison result. In this way, the rotation speeds of the first motor 1, the second motor 2, the third motor 3 and the fourth motor 4 can be controlled according to the opening degree of the accelerator, so that the control precision of the controller is improved. In specific implementation, the rotating speeds of the first motor 1, the second motor 2, the third motor 3 and the fourth motor 4 are all linearly related to the throttle opening value. During specific implementation, the first motor 1, the second motor 2, the third motor 3 and the fourth motor 4 are in transmission connection with corresponding wheels through the speed reducing mechanism. In this way, the drive torque can be increased. In specific implementation, the speed reducing mechanisms are all gear pairs. In addition, in the embodiment, the device further comprises a positioning module, a storage module, an electric plug and a charging detection module; the positioning module is electrically connected with the controller and used for positioning the automobile in real time, and the storage modules are electrically connected with the controller; the plug-in connector is electrically connected with the storage battery 6 and is used for connecting an external power supply and charging the storage battery 6; the charging detection module is electrically connected with the plug-in connector and is used for detecting whether the plug-in connector is connected with an external power supply or not; the charging detection module is electrically connected with the controller, and the controller is used for acquiring a detection result of the charging detection module, acquiring a positioning result of the positioning device when the plug-in connector is connected to the external power supply, and storing the position information into the storage module. The controller is also used for comparing the real-time detection result of the positioning device with the position information stored in the storage module one by one when the detection value of the battery information collection unit is smaller than the first electric quantity value, selecting the nearest position, feeding back the nearest position to a display screen of the navigation in the cab, and requesting a driver to input a command of whether to charge nearby. After acquiring a nearby charging instruction, the controller controls the first motor 1 to be disconnected with the first wheel 9, the second motor 2 to be disconnected with the second wheel 10, the third motor 3 to be disconnected with the third wheel 11, and the fourth motor 4 to be disconnected with the fourth wheel 12. Therefore, the load of the engine can be reduced, the fuel consumption is reduced, more economical and environment-friendly electric energy is used, and the purposes of reducing emission and saving energy are achieved. During specific implementation, electromagnetic clutches are arranged between the first motor 1 and the first wheel 9, between the second motor 2 and the second wheel 10, between the third motor 3 and the third wheel 11, and between the fourth motor 4 and the fourth wheel 12, and the electromagnetic clutches are electrically connected with the controller. When the method is specifically implemented, the address of the charging pile is pre-stored in the storage module.
In the embodiment, a brake pedal position value is preset in the controller, and the controller is used for controlling the storage battery 6 to stop supplying power to the first motor 1, the second motor 2, the third motor 3 and the fourth motor 4 when the detection result of the brake pedal position sensor is smaller than the brake pedal position value; the first motor 1, the second motor 2, the third motor 3 and the fourth motor 4 rotate under the driving of wheels and generate electricity; the controller is used for controlling the first motor 1, the second motor 2, the third motor 3 and the fourth motor 4 to rotate reversely to brake each wheel when the detection result of the brake pedal position sensor is larger than or equal to the brake pedal position value. In this way, the controller performs braking or energy recovery in different ways according to the brake pedal position, thereby performing recovery of braking energy to the maximum extent. In specific implementation, the first motor 1, the second motor 2, the third motor 3 and the fourth motor 4 are all speed-adjustable motors.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The utility model provides a plug-in hybrid vehicle's energy management system which characterized in that: the energy management system is used for a plug-in hybrid electric vehicle and comprises a controller, a first motor (1), a second motor (2), a third motor (3), a fourth motor (4), an inverter (5), a storage battery (6), an engine (7), a generator (8), an accelerator opening sensor, a battery information collection unit and a brake pedal position sensor;
the first motor (1) is in transmission connection with a first wheel (9) and is used for driving or braking the first wheel (9); the second motor (2) is in transmission connection with a second wheel (10) and is used for driving or braking the second wheel (10); the third motor (3) is in transmission connection with a third wheel (11) and is used for driving or braking the third wheel (11); the fourth motor (4) is in transmission connection with a fourth wheel (12) and is used for driving or braking the fourth wheel (12);
the inverter (5) is electrically connected with the storage battery (6), the first motor (1), the second motor (2), the third motor (3) and the fourth motor (4) and is used for improving the power supply voltage of the first motor (1), the second motor (2), the third motor (3) and the fourth motor (4);
the engine (7) is in transmission connection with the generator (8) and is used for driving the rotor of the generator (8) to rotate; the generator (8) is electrically connected with the storage battery (6) and is used for charging the storage battery (6);
the controller is electrically connected with the accelerator opening sensor and used for acquiring a detection value of the accelerator opening sensor;
the battery information collection unit is used for detecting the electric quantity information of the storage battery (6), and the controller is electrically connected with the battery information collection unit and used for acquiring the detection value of the battery information collection unit;
the controller is electrically connected with the brake pedal position sensor and used for acquiring the detection result of the brake pedal position sensor;
the device also comprises a positioning module, a storage module, an electric plug connector and a charging detection module; the storage module is pre-stored with a charging pile address; the positioning module is electrically connected with the controller and used for positioning the automobile in real time, and the storage modules are electrically connected with the controller; the plug-in connector is electrically connected with the storage battery and is used for connecting an external power supply and charging the storage battery; the charging detection module is electrically connected with the plug-in connector and is used for detecting whether the plug-in connector is connected with an external power supply or not; the charging detection module is electrically connected with the controller, and the controller is used for acquiring a detection result of the charging detection module, acquiring a positioning result of the positioning device when the plug-in connector is connected to an external power supply, and storing position information into the storage module; the controller is also used for comparing the real-time detection result of the positioning device with the position information stored in the storage module one by one when the detection value of the battery information collection unit is smaller than the first electric quantity value, selecting the nearest position, feeding back the nearest position to a display screen of the navigation in the cab, and requesting a driver to input an instruction whether to charge nearby; after the controller obtains a nearby charging instruction, the first motor is controlled to be disconnected with the first wheel, the second motor is controlled to be disconnected with the second wheel, the third motor is controlled to be disconnected with the third wheel, and the fourth motor is controlled to be disconnected with the fourth wheel;
electromagnetic clutches are arranged between the first motor and the first wheel, between the second motor and the second wheel, between the third motor and the third wheel, and between the fourth motor and the fourth wheel, and are electrically connected with the controller;
a brake pedal position value is preset in the controller, and the controller is used for controlling the storage battery (6) to stop supplying power to the first motor (1), the second motor (2), the third motor (3) and the fourth motor (4) when the detection result of the brake pedal position sensor is smaller than the brake pedal position value; the first motor (1), the second motor (2), the third motor (3) and the fourth motor (4) rotate under the driving of wheels and generate electricity; the controller is used for controlling the first motor (1), the second motor (2), the third motor (3) and the fourth motor (4) to rotate reversely to brake each wheel when the detection result of the brake pedal position sensor is larger than or equal to the brake pedal position value.
2. The energy management system of a plug-in hybrid vehicle of claim 1, wherein: the controller is internally preset with a first electric quantity value and a second electric quantity value, the first electric quantity value is smaller than the second electric quantity value, and the controller compares the acquired detection value of the battery information collection unit with the first electric quantity value and the second electric quantity value respectively; the controller is used for controlling the engine (7) to start when the detection value of the battery information collection unit is smaller than a first electric quantity value, and the generator (8) works under the driving of the engine (7) and supplies power to the storage battery (6); the controller is used for controlling the engine (8) to stop working when the detection value of the battery information collection unit is larger than the second electric quantity value.
3. The energy management system of a plug-in hybrid vehicle of claim 1, wherein: a plurality of accelerator opening values are preset in the controller, and the controller is used for comparing the detection result of the accelerator opening sensor with each accelerator opening value and controlling the rotating speed of the first motor (1), the second motor (2), the third motor (3) and the fourth motor (4) according to the comparison result.
4. The energy management system of a plug-in hybrid vehicle according to claim 3, characterized in that: the rotating speeds of the first motor (1), the second motor (2), the third motor (3) and the fourth motor (4) are linearly related to the throttle opening value.
5. The energy management system of a plug-in hybrid vehicle of claim 1, wherein: the first motor (1), the second motor (2), the third motor (3) and the fourth motor (4) are all speed-regulating motors.
6. The energy management system of a plug-in hybrid vehicle of claim 1, wherein: the first motor (1), the second motor (2), the third motor (3) and the fourth motor (4) are in transmission connection with corresponding wheels through speed reducing mechanisms.
7. The energy management system of a plug-in hybrid vehicle of claim 6, wherein: the speed reducing mechanisms are all gear pairs.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610915498.3A CN106564491B (en) | 2016-10-21 | 2016-10-21 | Energy management system of plug-in hybrid electric vehicle |
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| CN201610915498.3A CN106564491B (en) | 2016-10-21 | 2016-10-21 | Energy management system of plug-in hybrid electric vehicle |
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| CN106564491A CN106564491A (en) | 2017-04-19 |
| CN106564491B true CN106564491B (en) | 2020-08-25 |
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| CN109421936B (en) * | 2017-08-29 | 2021-07-30 | 深圳市道通智能航空技术股份有限公司 | Given rotating speed calculation method and device, electric regulation, power system and unmanned aerial vehicle |
| CN110103854B (en) * | 2019-04-04 | 2022-05-24 | 江西清华泰豪三波电机有限公司 | Electrical control system of hybrid electric vehicle |
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| CN201195494Y (en) * | 2008-03-24 | 2009-02-18 | 南京汽车集团有限公司 | 4-wheel driven power transmission system of hybrid power automobile |
| CN101570131A (en) * | 2009-06-03 | 2009-11-04 | 奇瑞汽车股份有限公司 | Four-wheel driven hybrid vehicle driving system and driving management method thereof |
| CN201756055U (en) * | 2010-07-23 | 2011-03-09 | 同济大学 | Transmission device of four-wheel-driven plug-in hybrid electric vehicle |
| CN202138243U (en) * | 2011-06-15 | 2012-02-08 | 白风山 | Double-power-machine electric connection and control four-wheel driven four-steering energy recovery car |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3593983B2 (en) * | 2001-01-16 | 2004-11-24 | 日産自動車株式会社 | Vehicle driving force control device |
| JP5141705B2 (en) * | 2010-03-19 | 2013-02-13 | アイシン・エィ・ダブリュ株式会社 | Driving support apparatus, method and program |
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- 2016-10-21 CN CN201610915498.3A patent/CN106564491B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201195494Y (en) * | 2008-03-24 | 2009-02-18 | 南京汽车集团有限公司 | 4-wheel driven power transmission system of hybrid power automobile |
| CN101570131A (en) * | 2009-06-03 | 2009-11-04 | 奇瑞汽车股份有限公司 | Four-wheel driven hybrid vehicle driving system and driving management method thereof |
| CN201756055U (en) * | 2010-07-23 | 2011-03-09 | 同济大学 | Transmission device of four-wheel-driven plug-in hybrid electric vehicle |
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