CN202966003U - Automobile electronic differential device based on single chip microcomputer - Google Patents
Automobile electronic differential device based on single chip microcomputer Download PDFInfo
- Publication number
- CN202966003U CN202966003U CN 201220587487 CN201220587487U CN202966003U CN 202966003 U CN202966003 U CN 202966003U CN 201220587487 CN201220587487 CN 201220587487 CN 201220587487 U CN201220587487 U CN 201220587487U CN 202966003 U CN202966003 U CN 202966003U
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- chip microcomputer
- single chip
- micro controller
- controller system
- electronic differential
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Abstract
The utility model discloses an automobile electronic differential device based on a single chip microcomputer, which comprises an angle sensor, a displacement sensor, a speed sensor, an A/D (analog to digital) converter, a single chip microcomputer and a motor controller, wherein the angle sensor, the displacement sensor and the speed sensor are respectively connected with an input end of the single chip microcomputer through the A/D converter, and an output end of the single chip microcomputer is connected with the motor controller. By using the automobile electronic differential device provided by the utility model, electronic differential of a wheel rim driven electric motor vehicle can be realized, the automobile electronic differential device has obvious advantages of high space utilization rate of the whole vehicle, easiness in realization through motor control, high transmission efficiency, energy consumption saving and the like, and the driving dynamic performance of the vehicle can be greatly improved.
Description
Technical field
The utility model relates to a kind of vehicle electronics differential gear, is specifically related to a kind of SCM Based vehicle electronics differential gear.
Background technology
Along with the Global Auto industrial expansion, the recoverable amount of Global Auto increases year by year, and the automobile pollution that increases has year by year brought two challenges greatly to countries in the world: " lack of energy " and " environmental pollution ".Electronlmobil in the huge advantage aspect energy-conservation and environmental protection, becomes the focus that countries in the world are competitively studied with it.But the pure electric vehicle that uses at present still adopts traditional speed reduction gearing and mechanical speed difference device, not only complex structure is heavy, and driving efficiency is low, energy consumption is high, so in the urgent need to a kind of differential system that can lean on Eltec to realize fully, i.e. vehicle electronics differential gear.
Summary of the invention
For the deficiency that prior art exists, the purpose of this utility model is, a kind of SCM Based vehicle electronics differential gear is provided.
In order to realize above-mentioned task, the utility model adopts following technical scheme to be achieved:
A kind of SCM Based vehicle electronics differential gear, comprise angular transducer, displacement pickup, speed sensor, A/D converter, micro controller system and electric machine controller, angular transducer, displacement pickup and speed sensor are connected with the input end of micro controller system by A/D converter respectively, and the mouth of micro controller system is connected with electric machine controller.
The utility model also has following technical characterstic:
Described micro controller system adopts Freescale S12 micro controller system.
Described speed sensor is two.
Described digital and analogue signals conv is four.
Described electric machine controller is two.
The utility model adopts the corner of angular transducer direction of measurement dish, adopt the displacement of displacement sensor acceleration pedal, the digital signal that gathers converts analog signal to through A/D converter, be input to micro controller system, after micro controller system carries out the relevant control analysis, control signal is outputed to electric machine controller, and then by the rotating speed of motor controller controls left and right motor; Gathered simultaneously the real-time speed of left and right wheels by two speed sensors, feed back to micro controller system, micro controller system will control rotating speed and the comparative analysis of wheel actual speed is calculated, and makes corresponding control.Thereby realize the stable differential of left and right wheels.
The vehicle electronics differential gear that the utility model proposes can be realized the electronic differential of wheel rim driven motor vehicle, have the car load space availability ratio high, be easy to by electric machine control realize, the significant advantages such as driving efficiency is high, energy efficient, can greatly improve the vehicle dynamics performance of vehicle.
Description of drawings
Fig. 1 is annexation schematic diagram of the present utility model.
Below in conjunction with drawings and Examples, particular content of the present utility model is described in more detail.
The specific embodiment
Below provide specific embodiment of the utility model, need to prove that the utility model is not limited to following specific embodiment, all equivalents of doing on present techniques scheme basis all fall into protection domain of the present utility model.
Defer to technique scheme, as shown in Figure 1, a kind of SCM Based vehicle electronics differential gear, comprise angular transducer, displacement pickup, speed sensor, A/D converter, micro controller system and electric machine controller, angular transducer, displacement pickup and speed sensor are connected with the input end of micro controller system by A/D converter respectively, and the mouth of micro controller system is connected with electric machine controller.
Described angular transducer is arranged on Steering gear, is used for measuring the steering angle signal.When turning to left, angle is got negatively, and when turning to the right, angle is just got.
Described displacement pickup is arranged on acceleration pedal, is used for measuring the acceleration pedal signal, and then realizes acceleration and deceleration when turning to.
Described two speed sensors are arranged on left and right wheels, be used for to measure the real-time speed signal of left and right wheels, and with its feed back input to micro controller system.
Described four digital-to-analogue signal converters are used for converting the digital signal of angular transducer, displacement pickup and speed sensor to analog signal, and are input to micro controller system.
Described micro controller system adopts Freescale S12 micro controller system, be electrically connected to four A/D converters and two electric machine controllers, be used for receiving steering angle signal, acceleration pedal displacement signal and left and right wheels real-time speed signal, and output a control signal to the left and right electric machine controller, and then control two wheel motors and realize the wheel differential.
Described two electric machine controllers are arranged on the motor of left and right, are used for receiving the control signal from micro controller system, and the left and right motor is carried out rotating speed and torque control.
during the utility model work, angular transducer obtains the wheel steering angle signal, displacement pickup obtains the acceleration pedal displacement signal, be input to micro controller system, after calculating according to above-mentioned parameter operation, micro controller system draws the rotating speed of target of left and right wheels, output signal is controlled left side electric machine controller and the right electric machine controller respectively, the left and right electric machine controller drives respectively left and right motor operation, when the time comes speed sensor obtain respectively revolver and again the wheel the real-time speed signal, and the real-time speed signal feedback is input to micro controller system, micro controller system carries out difference relatively with real-time speed and control rate, make further control policy.If vehicle is kept straight on, micro controller system sends same signal to the right and left electric machine controller, and two motor speeds are identical, synchronized operation, and left and right wheels speed equates; If turn inside diameter, micro controller system sends different signals to the right and left electric machine controller, and two motor speeds are realized difference, and left and right wheels moves ahead with different speed.
Claims (5)
1. SCM Based vehicle electronics differential gear, it is characterized in that, comprise angular transducer, displacement pickup, speed sensor, A/D converter, micro controller system and electric machine controller, angular transducer, displacement pickup and speed sensor are connected with the input end of micro controller system by A/D converter respectively, and the mouth of micro controller system is connected with electric machine controller.
2. SCM Based vehicle electronics differential gear as claimed in claim 1, is characterized in that, described micro controller system adopts Freescale S12 micro controller system.
3. SCM Based vehicle electronics differential gear as claimed in claim 1, is characterized in that, described speed sensor is two.
4. SCM Based vehicle electronics differential gear as claimed in claim 1, is characterized in that, described digital and analogue signals conv is four.
5. SCM Based vehicle electronics differential gear as claimed in claim 1, is characterized in that, described electric machine controller is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220587487 CN202966003U (en) | 2012-11-08 | 2012-11-08 | Automobile electronic differential device based on single chip microcomputer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220587487 CN202966003U (en) | 2012-11-08 | 2012-11-08 | Automobile electronic differential device based on single chip microcomputer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202966003U true CN202966003U (en) | 2013-06-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220587487 Expired - Fee Related CN202966003U (en) | 2012-11-08 | 2012-11-08 | Automobile electronic differential device based on single chip microcomputer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202966003U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106364368A (en) * | 2016-10-10 | 2017-02-01 | 河北工业大学 | Control system of electric vehicle based on two hub motors |
| CN108466570A (en) * | 2018-04-04 | 2018-08-31 | 武汉理工大学 | A kind of electric vehicle E-Diff |
-
2012
- 2012-11-08 CN CN 201220587487 patent/CN202966003U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106364368A (en) * | 2016-10-10 | 2017-02-01 | 河北工业大学 | Control system of electric vehicle based on two hub motors |
| CN108466570A (en) * | 2018-04-04 | 2018-08-31 | 武汉理工大学 | A kind of electric vehicle E-Diff |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130605 Termination date: 20131108 |