CN104554243A - AMT (automated manual transmission) speed limitation control method - Google Patents

AMT (automated manual transmission) speed limitation control method Download PDF

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Publication number
CN104554243A
CN104554243A CN201410707623.2A CN201410707623A CN104554243A CN 104554243 A CN104554243 A CN 104554243A CN 201410707623 A CN201410707623 A CN 201410707623A CN 104554243 A CN104554243 A CN 104554243A
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China
Prior art keywords
speed
controller
engine
limiting
sends
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CN201410707623.2A
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Chinese (zh)
Inventor
杨小辉
李福文
聂幸福
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Shaanxi Fast Gear Co Ltd
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Shaanxi Fast Gear Co Ltd
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Application filed by Shaanxi Fast Gear Co Ltd filed Critical Shaanxi Fast Gear Co Ltd
Priority to CN201410707623.2A priority Critical patent/CN104554243A/en
Publication of CN104554243A publication Critical patent/CN104554243A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
    • B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
    • 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
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • B60W10/11—Stepped gearings
    • 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
    • B60W40/00—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models
    • B60W40/10—Estimation or calculation of non-directly measurable driving parameters for road vehicle drive control systems not related to the control of a particular sub unit, e.g. by using mathematical models related to vehicle motion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
    • F02D29/02—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving vehicles; peculiar to engines driving variable pitch propellers
    • 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
    • F16H59/04—Ratio selector apparatus
    • F16H59/044—Ratio selector apparatus consisting of electrical switches or sensors
    • 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
    • B60W2510/30—Auxiliary equipments
    • 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
    • B60W2520/00—Input parameters relating to overall vehicle dynamics
    • 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
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/06—Combustion engines, Gas turbines
    • B60W2710/0644—Engine speed
    • 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
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/10—Change speed gearings
    • B60W2710/1005—Transmission ratio engaged

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Mathematical Physics (AREA)
  • Control Of Transmission Device (AREA)

Abstract

The invention relates to a speed limitation control method and particularly relates to an AMT (automated manual transmission) speed limitation control method. The AMT speed limitation control method comprises the following steps: 1), a car body controller receives a speed limitation signal and a car state signal sent by a speed limitation switch and a state signal, and transmits the received speed limitation signal and the received car state signal to a transmission controller through a car communication module; 2), the transmission controller receives the speed limitation signal and the car state signal, and determines a speed limitation scheme according to a car speed calculation formula, rotation speed of an engine and gear of a transmission; 3), the transmission controller realizes a speed limitation function according to the speed limitation scheme obtained in the step 2). The AMT speed limitation control method is used for realizing the speed limitation function through a speed limitation control method of controlling the gear of the transmission or limiting highest rotation speed of the engine through a message or limiting the gear of the transmission and meanwhile controlling the rotation speed of the engine through the car communication module, so that economical efficiency of a whole car can be improved, great significance is realized for limiting relatively high speed, and a speed limitation effect is good.

Description

A kind of AMT speed-limiting control method
Technical field
The present invention relates to a kind of speed-limiting control method, particularly relate to a kind of AMT speed-limiting control method.
Background technology
Electric control mechanical type automatic speed variator (AMT) technology is an important development direction of automatic transmission with hydraulic torque converter.From equipment situation and the development tendency of European automatic transmission with hydraulic torque converter, the advantage that AMT is simple with its structure, efficiency is high, cost performance is high and taking advantage.Because AMT realizes autoshift function by integrated shift control system and ECU (Electrical Control Unit) on the basis of hand-operated transmission, so there is good production inheritance for change-speed box manufacturing enterprise of China, be applicable to China's national situation, wide market.
At present, domestic commercial vehicle AMT research and development have obtained certain breakthrough, and have part producer to enter terminal user's test phase, but performance has much room for improvement, other additional functions are not yet developed, as speed limiting function.External AMT is quite ripe, and requires to develop various function according to different automobile types, meets the demand of various vehicle.At present, national legislation proposes speed limit requirement to passenger vehicle, lorry and other vehicles, and at present mainly through realizations such as governed engine speed or top gear speed ratios, speed limit weak effect, supervision also acquires a certain degree of difficulty.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, provide a kind of rotating speed by limiting engine or gear or both to use simultaneously, realize the AMT speed-limiting control method of speed limiting function.
For solving the problem, the technical scheme that the present invention takes is: comprise the following steps:
1), car body controller receives the restricting signal and Vehicular status signal that speed limiting switch and status signal send, and the restricting signal received and Vehicular status signal are sent to gearbox controller with message form by vehicle communication module by car body controller;
2), gearbox controller receives restricting signal and Vehicular status signal with message form, and according to speed of a motor vehicle computing formula and the rotating speed of driving engine and the gear determination speed-limiting proposal of change-speed box;
3), gearbox controller is according to step 2) speed-limiting proposal that obtains, realize speed limiting function by the speed-limiting control method of controlled variator gear or send governed engine speed requirement by vehicle communication module to engine controller with message form, realize speed limiting function or simultaneously limiting transmission gear and send governed engine speed requirement to engine controller by vehicle communication module by the speed-limiting control method of engine controller limiting engine rotating speed, realize speed limiting function by the speed-limiting control method of engine controller controls engine speed.
Described speed of a motor vehicle computing formula is:
n e * R * 0.337 i g * i 0 * i trans ≤ VehicleSpeedLimitation - - - ( 1 )
Wherein, n e: engine speed; R: vehicle wheel roll radius; i g: transmission gear ratio;
I 0: rear axle ratio; i trans: auxiliary gear box speed ratio; VehicleSpeedLimitation: speed of a motor vehicle limit value;
Described Vehicular status signal comprises cross-country pattern and highway pattern.
The concrete speed limit process of the speed-limiting control method of described controlled variator gear is:
When speed limiting switch is Xkm/h to the speed limit signal that car body controller sends, status signal to the Vehicular status signal that car body controller sends be cross-country pattern or highway pattern time, car body controller sends to gearbox controller with message form by vehicle communication module, gearbox controller sends the restriction of most high tap position to change-speed box, and vehicle enters speed limit pattern;
When not needing speed limit, speed limiting switch sends to car body controller cancels speed limit, car body controller sends to gearbox controller with message form by vehicle communication module, and gearbox controller sends to change-speed box cancels the most high tap position restriction of D Drive, and vehicle enters normal mode.
Described sends governed engine speed requirement by vehicle communication module to engine controller with message form, by the concrete speed limit process of the speed-limiting control method of engine controller limiting engine rotating speed is:
When speed limiting switch is Xkm/h to the speed limit signal that car body controller sends, Vehicular status signal be cross-country pattern or highway pattern time, car body controller sends to gearbox controller with message form by vehicle communication module, gearbox controller sends governed engine speed requirement by vehicle communication module to engine controller with message form, engine controller sends rotating speed restriction to driving engine, and vehicle enters speed limit pattern;
When not needing speed limit, speed limiting switch sends to car body controller cancels speed limit, car body controller sends cancellation speed limit by vehicle communication module to gearbox controller with message form, gearbox controller sends cancellation speed limit by vehicle communication module to engine controller with message form, speed limit cancelled by driving engine, and vehicle enters normal operation mode.
Limiting transmission gear and send governed engine speed requirement to engine controller by vehicle communication module while described, by the concrete speed limit process of the speed-limiting control method of engine controller controls engine speed is:
When speed limiting switch is Xkm/h to the speed limit signal that car body controller sends, status signal to the Vehicular status signal that car body controller sends be cross-country pattern or highway pattern time, car body controller sends to gearbox controller with message form by vehicle communication module, gearbox controller sends the restriction of most high tap position to change-speed box, send engine speed restriction to engine controller, vehicle enters speed limit pattern simultaneously;
When not needing speed limit, speed limiting switch sends to car body controller cancels speed limit, car body controller sends cancellation speed limit by vehicle communication module to gearbox controller with message form, gearbox controller to be sent to change-speed box by vehicle communication module with message form cancels the restriction of most high tap position, send to engine controller simultaneously and cancel speed limit, speed limit cancelled by driving engine, and vehicle enters normal operation mode.
When speed limiting switch is in non-speed limit state, when gearbox controller does not receive restricting signal and Vehicular status signal, gearbox controller is in non-speed limit state, normal vehicle operation.
Described vehicle communication module is CAN.
Compared with prior art, the present invention has following beneficial effect: restricting signal and Vehicular status signal are issued car body controller by speed limiting switch and status signal by the present invention, above signal is sent to gearbox controller by vehicle communication module with message form by car body controller, gearbox controller is according to message signals, speed of a motor vehicle computing formula, determine concrete speed-limiting proposal, realize speed limiting function, the present invention realizes speed limiting function by the speed-limiting control method of controlled variator gear or sends governed engine speed requirement by vehicle communication module to engine controller with message form, speed limiting function or simultaneously limiting transmission gear and send governed engine speed requirement to engine controller by vehicle communication module is realized by the speed-limiting control method of engine controller limiting engine rotating speed, speed limiting function is realized by the speed-limiting control method of engine controller controls engine speed, car load economy can be improved, especially significant time higher for speed limit, and speed limit is effective.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention;
Fig. 2 is Control for Speed Limitation diagram of circuit of the present invention;
Wherein, 1, speed limiting switch; 2, car body controller; 3, status signal; 4, CAN; 5, change-speed box; 6, gearbox controller; 7, driving engine; 8, engine controller.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further details:
See Fig. 1 and Fig. 2, a kind of AMT speed-limiting control method of the present invention, comprises the following steps:
1), car body controller 2 receives the restricting signal and Vehicular status signal that speed limiting switch 1 and status signal 3 send, and the restricting signal received and Vehicular status signal are sent to gearbox controller 6 with message form by vehicle communication module 4 by car body controller 2;
2), gearbox controller 6 receives restricting signal and Vehicular status signal with message form, and according to speed of a motor vehicle computing formula and the rotating speed of driving engine 7 and the gear determination speed-limiting proposal of change-speed box 5;
3), gearbox controller 6 is according to step 2) speed-limiting proposal that obtains, realize speed limiting function by the speed-limiting control method of controlled variator 5 gear or send governed engine speed requirement by vehicle communication module 4 to engine controller 8 with message form, realize speed limiting function or simultaneously limiting transmission 5 gear and send governed engine speed requirement to engine controller 8 by vehicle communication module 4 by the speed-limiting control method of engine controller 8 limiting engine 7 rotating speed, the speed-limiting control method being controlled driving engine 7 rotating speed by engine controller 8 realizes speed limiting function.
Concrete speed limit process of the present invention is:
1) the restricting signal 20km/h that the speed limiting switch 1 that, car body controller 2 receives sends, status signal 3 to the Vehicular status signal that car body controller 2 sends be cross-country pattern or highway pattern time, the restricting signal received and Vehicular status signal are sent to gearbox controller 6 with message form by CAN by car body controller 2;
2), gearbox controller 6 receives restricting signal and Vehicular status signal with message form, and be realize speed limiting function by the speed-limiting control method of controlled variator 5 gear or send governed engine speed requirement by vehicle communication module 4 to engine controller 8 with message form according to speed of a motor vehicle computing formula and the rotating speed of driving engine 7 and the gear determination speed-limiting proposal of change-speed box 5, speed limiting function or simultaneously limiting transmission 5 gear and send governed engine speed requirement to engine controller 8 by vehicle communication module 4 is realized by the speed-limiting control method of engine controller 8 limiting engine 7 rotating speed, the speed-limiting control method being controlled driving engine 7 rotating speed by engine controller 8 realizes speed limiting function.
The speed of a motor vehicle computing formula that the present invention adopts is:
n e * R * 0.337 i g * i 0 * i trans ≤ VehicleSpeedLimitation - - - ( 1 )
Wherein, n e: engine speed; R: vehicle wheel roll radius; i g: transmission gear ratio;
I 0: rear axle ratio; i trans: auxiliary gear box speed ratio; VehicleSpeedLimitation: speed of a motor vehicle limit value;
3), (i) when the speed-limiting proposal that gearbox controller 6 receives is controlled variator 5 gear, its specific operation process is:
When speed limiting switch 1 is Xkm/h to the speed limit signal that car body controller 2 sends, Vehicular status signal be cross-country pattern or highway pattern time, car body controller 2 sends to gearbox controller 6 with message form by CAN, gearbox controller 6 sends the restriction of most high tap position to change-speed box 5, and when needing speed limit, change-speed box 5 falls after 1 grade, vehicle enters normal form pattern, when not needing speed limit, after change-speed box 5 performs self shifter, vehicle enters normal form pattern;
When not needing speed limit, speed limiting switch 1 sends to car body controller 2 cancels speed limit, car body controller 2 sends to gearbox controller 6 with message form by vehicle communication module 4, and gearbox controller 6 sends to change-speed box 5 cancels the most high tap position restriction of D Drive, and vehicle enters normal mode.
(ii) speed-limiting proposal received when gearbox controller 6, for send governed engine speed requirement by vehicle communication module 4 to engine controller 8 with message form, by the concrete speed limit process of the speed-limiting control method of engine controller 8 limiting engine 7 rotating speed is:
When speed limiting switch 1 is Xkm/h to the speed limit signal that car body controller 2 sends, Vehicular status signal be cross-country pattern or highway pattern time, car body controller 2 sends to gearbox controller 6 with message form by vehicle communication module 4, gearbox controller 6 sends governed engine speed requirement by vehicle communication module 4 to engine controller 8 with message form, engine controller 8 sends rotating speed restriction to driving engine 7, and vehicle enters speed limit pattern; When not needing speed limit, speed limiting switch 1 sends to car body controller 2 cancels speed limit, car body controller 2 sends cancellation speed limit by vehicle communication module 4 to gearbox controller 6 with message form, gearbox controller 6 sends cancellation speed limit by vehicle communication module 4 to engine controller 8 with message form, speed limit cancelled by driving engine 8, and vehicle enters normal operation mode.
(iii) simultaneously limiting transmission 5 gear and send governed engine speed requirement to engine controller 8 by vehicle communication module 4, the concrete speed limit process being controlled the speed-limiting control method of driving engine 7 rotating speed by engine controller 8 is:
When speed limiting switch 1 is Xkm/h to the speed limit signal that car body controller 2 sends, status signal 3 to the Vehicular status signal that car body controller 2 sends be cross-country pattern or highway pattern time, car body controller 2 sends to gearbox controller 6 with message form by vehicle communication module 4, gearbox controller 6 sends the restriction of most high tap position to change-speed box 5, send engine speed restriction to engine controller 8, vehicle enters speed limit pattern simultaneously;
When not needing speed limit, speed limiting switch 1 sends to car body controller 2 cancels speed limit, car body controller 2 sends cancellation speed limit by vehicle communication module 4 to gearbox controller 6 with message form, gearbox controller 6 to be sent to change-speed box 5 by vehicle communication module 4 with message form cancels the restriction of most high tap position, send to engine controller 8 simultaneously and cancel speed limit, speed limit cancelled by driving engine 7, and vehicle enters normal operation mode.
When speed limiting switch 1 is in non-speed limit state, when gearbox controller 6 does not receive restricting signal and Vehicular status signal, gearbox controller 6 is in non-speed limit state, normal vehicle operation.

Claims (8)

1. an AMT speed-limiting control method, is characterized in that: comprise the following steps:
1), car body controller (2) receives speed limiting switch (1) and the restricting signal that sends of status signal (3) and Vehicular status signal, and the restricting signal received and Vehicular status signal are sent to gearbox controller (6) with message form by vehicle communication module (4) by car body controller (2);
2), gearbox controller (6) receives restricting signal and Vehicular status signal with message form, and according to speed of a motor vehicle computing formula and the rotating speed of driving engine (7) and the gear determination speed-limiting proposal of change-speed box (5);
3), gearbox controller (6) is according to step 2) speed-limiting proposal that obtains, realize speed limiting function by the speed-limiting control method of controlled variator (5) gear or send governed engine speed requirement by vehicle communication module (4) to engine controller (8) with message form, speed limiting function or simultaneously limiting transmission (5) gear and send governed engine speed requirement to engine controller (8) by vehicle communication module (4) is realized by the speed-limiting control method of engine controller (8) limiting engine (7) rotating speed, the speed-limiting control method being controlled driving engine (7) rotating speed by engine controller (8) realizes speed limiting function.
2. a kind of AMT speed-limiting control method according to claim 1, is characterized in that: described speed of a motor vehicle computing formula is:
n e * R * 0.377 i g * i 0 * i trans ≤ VehicleSpeedLimitation
Wherein, n e: engine speed; R: vehicle wheel roll radius; i g: transmission gear ratio;
I 0: rear axle ratio; i trans: auxiliary gear box speed ratio; VehicleSpeedLimitation: speed of a motor vehicle limit value.
3. a kind of AMT speed-limiting control method according to claim 1, is characterized in that: described Vehicular status signal comprises cross-country pattern and highway pattern.
4. a kind of AMT speed-limiting control method according to claim 3, is characterized in that: the concrete speed limit process of the speed-limiting control method of described controlled variator (5) gear is:
When speed limiting switch (1) is Xkm/h to the speed limit signal that car body controller (2) sends, status signal (3) to the Vehicular status signal that car body controller (2) sends be cross-country pattern or highway pattern time, car body controller (2) sends to gearbox controller (6) with message form by vehicle communication module (4), gearbox controller (6) sends the restriction of most high tap position to change-speed box (5), and vehicle enters speed limit pattern;
When not needing speed limit, speed limiting switch (1) sends to car body controller (2) cancels speed limit, car body controller (2) sends to gearbox controller (6) with message form by vehicle communication module (4), gearbox controller (6) sends to change-speed box (5) cancels the most high tap position restriction of D Drive, and vehicle enters normal mode.
5. a kind of AMT speed-limiting control method according to claim 3, it is characterized in that: described sends governed engine speed requirement by vehicle communication module (4) to engine controller (8) with message form, by the concrete speed limit process of the speed-limiting control method of engine controller (8) limiting engine (7) rotating speed is:
When speed limiting switch (1) is Xkm/h to the speed limit signal that car body controller (2) sends, Vehicular status signal be cross-country pattern or highway pattern time, car body controller (2) sends to gearbox controller (6) with message form by vehicle communication module (4), gearbox controller (6) sends governed engine speed requirement by vehicle communication module (4) to engine controller (8) with message form, engine controller (8) sends rotating speed restriction to driving engine (7), and vehicle enters speed limit pattern;
When not needing speed limit, speed limiting switch (1) sends to car body controller (2) cancels speed limit, car body controller (2) sends cancellation speed limit by vehicle communication module (4) to gearbox controller (6) with message form, gearbox controller (6) sends cancellation speed limit by vehicle communication module (4) to engine controller (8) with message form, speed limit cancelled by driving engine (8), and vehicle enters normal operation mode.
6. a kind of AMT speed-limiting control method according to claim 3, it is characterized in that: limiting transmission (5) gear and send governed engine speed requirement to engine controller (8) by vehicle communication module (4) while described, the concrete speed limit process being controlled the speed-limiting control method of driving engine (7) rotating speed by engine controller (8) is:
When speed limiting switch (1) is Xkm/h to the speed limit signal that car body controller (2) sends, status signal (3) to the Vehicular status signal that car body controller (2) sends be cross-country pattern or highway pattern time, car body controller (2) sends to gearbox controller (6) with message form by vehicle communication module (4), gearbox controller (6) sends the restriction of most high tap position to change-speed box (5), send engine speed restriction to engine controller (8), vehicle enters speed limit pattern simultaneously;
When not needing speed limit, speed limiting switch (1) sends to car body controller (2) cancels speed limit, car body controller (2) sends cancellation speed limit by vehicle communication module (4) to gearbox controller (6) with message form, gearbox controller (6) to be sent to change-speed box (5) by vehicle communication module (4) with message form cancels the restriction of most high tap position, send to engine controller (8) simultaneously and cancel speed limit, speed limit cancelled by driving engine (7), and vehicle enters normal operation mode.
7. a kind of AMT speed-limiting control method according to claim 1, it is characterized in that: when speed limiting switch (1) is in non-speed limit state, when gearbox controller (6) does not receive restricting signal and Vehicular status signal, gearbox controller (6) is in non-speed limit state, normal vehicle operation.
8. a kind of AMT speed-limiting control method according to claim 1, is characterized in that: described vehicle communication module (4) is CAN.
CN201410707623.2A 2014-11-27 2014-11-27 AMT (automated manual transmission) speed limitation control method Pending CN104554243A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410707623.2A CN104554243A (en) 2014-11-27 2014-11-27 AMT (automated manual transmission) speed limitation control method

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107059982A (en) * 2016-12-30 2017-08-18 上海华兴数字科技有限公司 A kind of excavator locking system and locking means
CN109334454A (en) * 2018-09-26 2019-02-15 潍柴动力股份有限公司 A kind of method, apparatus and vehicle of restricted speed

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107059982A (en) * 2016-12-30 2017-08-18 上海华兴数字科技有限公司 A kind of excavator locking system and locking means
CN107059982B (en) * 2016-12-30 2019-06-28 上海华兴数字科技有限公司 A kind of excavator locking system and locking means
CN109334454A (en) * 2018-09-26 2019-02-15 潍柴动力股份有限公司 A kind of method, apparatus and vehicle of restricted speed
CN109334454B (en) * 2018-09-26 2021-02-23 潍柴动力股份有限公司 Method and device for limiting vehicle speed and whole vehicle

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Application publication date: 20150429