CN113154022A - Embedded module of gearbox controller - Google Patents
Embedded module of gearbox controller Download PDFInfo
- Publication number
- CN113154022A CN113154022A CN202110403002.5A CN202110403002A CN113154022A CN 113154022 A CN113154022 A CN 113154022A CN 202110403002 A CN202110403002 A CN 202110403002A CN 113154022 A CN113154022 A CN 113154022A
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- Prior art keywords
- tcu
- embedded module
- gear
- mcu
- motor controller
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- 230000005540 biological transmission Effects 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 4
- 238000012790 confirmation Methods 0.000 claims description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
- F16H61/0204—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric for gearshift control, e.g. control functions for performing shifting or generation of shift signal
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
- F16H2059/0221—Selector apparatus for selecting modes, i.e. input device
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
The invention provides an embedded module of a gearbox controller, belonging to the technical field of automobile motor control; in the prior art, a gearbox control unit (TCU) adopts an independent controller and a wire harness, so that the wiring difficulty and the cost of the whole vehicle are increased; according to the controller without the TCU, the TCU is modularized, a driving circuit is integrated in a motor control panel, and software is integrated in one core of a three-core MCU chip and is integrated with motor control; the TCU does not need to communicate with the MCU through the CAN when shifting gears, the TCU directly calls the MCU software variable, time delay is avoided, the gear shifting time is shortened, the gear shifting smoothness is improved, and the gear shifting quality is improved.
Description
Technical Field
The invention belongs to the technical field of automobile motor control, and particularly relates to an embedded module of a gearbox controller.
Background
For an electric automobile, the endurance mileage is an important index, and on the premise of certain battery capacity, the endurance mileage of the automobile needs to be improved, the motor needs to be operated in a high-efficiency area for a long time, and the electric automobile adopts a multi-gear transmission to achieve the purpose, so that the climbing gradient and the highest speed can be improved, and meanwhile, a driving motor with lower weight and cost can be selected.
An Automated Manual Transmission (AMT) is an improvement on a conventional Manual gear Transmission. The AMT integrates the advantages of an AT (automatic transmission) and an MT (manual transmission), not only has the advantage of automatic transmission, but also keeps the advantages of high efficiency, low cost, simple structure and easy manufacture of the prior manual transmission gear transmission.
The existing electric automobile sampling whole Vehicle Controller (VCU), transmission case controller (TCU) and Motor Controller (MCU) are realized through CAN communication, and the transmission case controller (TCU) adopts an independent controller and a wire harness, so that the whole vehicle wiring difficulty and the whole vehicle cost are increased;
in the existing control state, when the gear is shifted, the TCU controls the MCU through a CAN message, and the TCU gear shifting process comprises a plurality of steps of motor unloading, neutral gear picking, motor speed regulation, gear engaging, torque recovery and the like, wherein except neutral gear picking and gear engaging, each step needs to send an instruction to the motor and confirm the feedback state of the motor, so that the gear shifting time is influenced.
The gear shifting time is an important assessment index of the TCU controller, and certain time delay exists when messages are transmitted through the CAN, so that the gear shifting smoothness is influenced. Three controllers are arranged on the whole vehicle, so that the wiring difficulty and the CAN bus load are increased, and the cost of the whole vehicle is increased.
Disclosure of Invention
In view of the problems in the prior art, the invention provides an embedded module of a gearbox controller, which is characterized in that: the embedded module includes: the TCU control software, the TCU drive circuit and the TCU signal acquisition circuit;
the TCU driving circuit and the TCU signal acquisition circuit are integrated in control panels of other controllers;
the TCU control software is integrated in one core of the multi-core chip of the other controller.
Preferably, the other controller is a motor controller MCU.
Preferably, when shifting gears, the embedded module directly calls a software variable of the motor controller MCU;
preferably, in the control board, the wiring harness of the embedded module and the wiring harness of the motor controller MCU are combined into one.
Preferably, the communication period between the embedded module and the motor controller MCU is 10 ms; the normal gear engaging time is less than 0.2 second.
Preferably, the embedded module can support gear shifting control of a maximum 4-gear gearbox.
The invention also provides a method for gear shifting operation by using the embedded module, which is characterized by comprising the following steps: the method comprises the following steps:
step (1): a Vehicle Control Unit (VCU) sends a gear shifting request to the motor controller MCU through a CAN bus according to the running state of the vehicle;
step (2): a core integrated with the TCU control software in the motor controller MCU multi-core chip sends a gear shifting confirmation signal to the Vehicle Control Unit (VCU) through a CAN bus;
and (3): the embedded module controls the motor controller MCU to unload, namely the embedded module (TCU) acquires the control right of the embedded module;
and (4): the embedded module sequentially finishes gear picking, calculates the target rotating speed of the motor according to the rotating speed of an output shaft, and controls the motor controller to regulate the speed and engage the gear in the motor controller MCU;
and (5): and after the gear is put into gear, the embedded module (TCU) returns the control right of the motor controller MCU to the Vehicle Control Unit (VCU).
Compared with the prior art, the invention at least has the following beneficial effects:
(1) a TCU controller is cancelled, the TCU is modularized, a driving circuit is integrated in a motor control panel, and software is integrated in one core of an MCU three-core chip and is integrated with motor control;
(2) the TCU does not need to communicate with the MCU through the CAN when shifting gears, the TCU directly calls the MCU software variable, time delay is avoided, the gear shifting time is shortened, the gear shifting smoothness is improved, and the gear shifting quality is improved.
(3) After the TCU controller is cancelled, the wiring harness of the TCU and the wiring harness of the MCU are combined into a whole, the wiring difficulty of the whole vehicle is reduced, and the CAN bus load is reduced.
Drawings
FIG. 1 is a prior art transmission case controller (TCU) control method;
FIG. 2 is a flow chart of the Transmission Controller (TCU) control of the present invention.
The present invention is described in further detail below. The following examples are merely illustrative of the present invention and do not represent or limit the scope of the claims, which are defined by the claims.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
The invention provides an embedded module controlled by a gearbox, and a Motor Controller (MCU) embedded with the embedded module of the gearbox controller;
a Motor Controller (MCU) embedded with a gearbox controller embedded module comprises a multi-core chip and a motor control board used for installing the chip; the transmission control embedded module (TCU) comprises: the TCU driving circuit, the TCU signal acquisition circuit and the TCU control software; TCU control software is integrated in one core of the multi-core chip; the TCU drive circuit and the TCU signal acquisition circuit are integrated in the motor control panel.
The MCU controller comprising the TCU module provided by the invention has the following technical advantages:
(1) the TCU driving circuit and the signal acquisition circuit are integrated in the MCU control panel and share the same chip with the MCU, so that the cost and the fault probability are reduced.
(2) The TCU control MCU for improving the gear shifting quality CAN shorten the gear shifting time without CAN message transmission, the normal gear shifting time is less than 0.2 second, the period of 10ms is sampled in general communication, each step needs 2 periods, and the time CAN be saved by 0.06 second. Meanwhile, the speed regulation and rotation speed real-time performance is more accurate, and the gear shifting impact is reduced.
As shown in fig. 2, is a control flow chart of the transmission controller embedded module of the present invention,
step (1): a Vehicle Control Unit (VCU) sends a gear shifting request to a Motor Controller (MCU) through a CAN bus according to the running state of a vehicle;
step (2): a core integrated with gearbox controller software in a multi-core chip of a Motor Controller (MCU) sends a gear shifting confirmation signal to a Vehicle Control Unit (VCU) through a CAN bus;
and (3): the transmission controller embedded module (TCU) controls the MCU to unload, namely the transmission controller embedded module (TCU) acquires the control right of the MCU;
and (4): the transmission case controller embedded module (TCU) sequentially finishes gear picking, motor target rotating speed calculation according to the rotating speed of an output shaft, MCU speed regulation and gear engagement in the MCU controller without message transmission through a CAN bus;
and (5): and after the gear is put into gear, the transmission controller embedded module (TCU) returns the control right of the MCU to a Vehicle Control Unit (VCU).
The transmission controller embedded module (TCU) provided by the invention has module attributes and can be integrated in an MCU controller; a gear shift control of a maximum 4-gear transmission may be supported.
The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (6)
1. An embedded module of a transmission controller, characterized by: the embedded module includes: the TCU control software, the TCU drive circuit and the TCU signal acquisition circuit;
the TCU driving circuit and the TCU signal acquisition circuit are integrated in control panels of other controllers;
the TCU control software is integrated in one core of the multi-core chip of the other controller;
in the control panel, the wiring harness of the embedded module and the wiring harnesses of the other controllers are combined into one.
2. The embedded module of claim 1, wherein: and the other controllers are Motor Controllers (MCU).
3. The embedded module of claim 2, wherein: when shifting gears, the embedded module directly calls a motor controller MCU software variable;
4. the embedded module of claim 1, wherein: the communication period between the embedded module and the motor controller MCU is 10 ms; the normal gear engaging time is less than 0.2 second.
5. The embedded module of claim 1, wherein: the embedded module may support gear shift control for a maximum 4-speed transmission.
6. A method of performing a shift maneuver using the embedded module of claim 2, wherein: the method comprises the following steps:
step (1): a Vehicle Control Unit (VCU) sends a gear shifting request to the motor controller MCU through a CAN bus according to the running state of the vehicle;
step (2): a core integrated with the TCU control software in the motor controller MCU multi-core chip sends a gear shifting confirmation signal to the Vehicle Control Unit (VCU) through a CAN bus;
and (3): the embedded module controls the motor controller MCU to unload, namely the embedded module (TCU) acquires the control right of the embedded module;
and (4): the embedded module sequentially finishes gear picking, calculates the target rotating speed of the motor according to the rotating speed of an output shaft, and controls the motor controller to regulate the speed and engage the gear in the motor controller MCU;
and (5): and after the gear is put into gear, the embedded module (TCU) returns the control right of the motor controller MCU to the Vehicle Control Unit (VCU).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110403002.5A CN113154022A (en) | 2021-04-15 | 2021-04-15 | Embedded module of gearbox controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110403002.5A CN113154022A (en) | 2021-04-15 | 2021-04-15 | Embedded module of gearbox controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113154022A true CN113154022A (en) | 2021-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110403002.5A Pending CN113154022A (en) | 2021-04-15 | 2021-04-15 | Embedded module of gearbox controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113682151A (en) * | 2021-09-24 | 2021-11-23 | 蜂巢传动系统(江苏)有限公司保定研发分公司 | Power drive controller of vehicle and vehicle |
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| CN106114493A (en) * | 2016-07-28 | 2016-11-16 | 长春孔辉汽车科技股份有限公司 | A kind of electric automobile AMT shift process control method |
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| CN110131407A (en) * | 2019-05-15 | 2019-08-16 | 北京长城华冠汽车科技股份有限公司 | A kind of electric drive two keeps off Method for Automated Mechanical Transmission and control method |
-
2021
- 2021-04-15 CN CN202110403002.5A patent/CN113154022A/en active Pending
Patent Citations (8)
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| KR20090022084A (en) * | 2007-08-29 | 2009-03-04 | 콘티넨탈 오토모티브 시스템 주식회사 | Method and apparatus for driving hybrid electrical vehicle |
| CN104802790A (en) * | 2015-05-21 | 2015-07-29 | 北京九州华海科技有限公司 | New-energy entire car controller integrated with transmission case control function |
| CN106080155A (en) * | 2016-06-28 | 2016-11-09 | 泰州市海博汽车科技有限公司 | A kind of optimization integrated system driving motor and automatic transmission and shift control method |
| CN106114493A (en) * | 2016-07-28 | 2016-11-16 | 长春孔辉汽车科技股份有限公司 | A kind of electric automobile AMT shift process control method |
| CN106926747A (en) * | 2017-02-15 | 2017-07-07 | 同济大学 | Pure electric automobile shifting control system based on no-clutch two-shift automatic speed variator |
| CN108327703A (en) * | 2018-01-31 | 2018-07-27 | 上海交通大学 | Electric drive two keeps off Method for Automated Mechanical Transmission and control method |
| CN108429492A (en) * | 2018-05-16 | 2018-08-21 | 上海英恒电子有限公司 | Automobile-used three-in-one electric drive controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113682151A (en) * | 2021-09-24 | 2021-11-23 | 蜂巢传动系统(江苏)有限公司保定研发分公司 | Power drive controller of vehicle and vehicle |
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Application publication date: 20210723 |