CN109177965A - A kind of intelligentized vehicle auxiliary braking control system and its control method - Google Patents
A kind of intelligentized vehicle auxiliary braking control system and its control method Download PDFInfo
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- CN109177965A CN109177965A CN201811190753.8A CN201811190753A CN109177965A CN 109177965 A CN109177965 A CN 109177965A CN 201811190753 A CN201811190753 A CN 201811190753A CN 109177965 A CN109177965 A CN 109177965A
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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
- 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
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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
- 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
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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
- B60W10/00—Conjoint control of vehicle sub-units of different type or different function
- B60W10/18—Conjoint control of vehicle sub-units of different type or different function including control of braking systems
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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
- 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
- B60W40/105—Speed
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Mathematical Physics (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
- Regulating Braking Force (AREA)
Abstract
A kind of intelligentized vehicle auxiliary braking control system and its control method, system include entire car controller, engine controller, automatic gear-box controller, Retarder controller, instrument, vehicle speed sensor, self-replaced type auxiliary braking grading control switch knob and gas pedal on fluid drive boxcar；It without automatic gear-box controller on hand gear boxcar, but include clutch pedal microswitch and transmission neutral switch.Control method includes: when meeting conditions dictate, and entire car controller activly request engine controller activates engine brake work；The Retarder that entire car controller sends respective notch requests activation signal, and Retarder controller controls Retarder work；Real-time gear information is passed into instrument, and gear information is shown to driver in a manner of patterned in instrument；Exit auxiliary braking control function.The working efficiency for improving auxiliary braking system increases the safety of vehicle driving.
Description
Technical field
The present invention relates to a kind of vehicle auxiliary braking system, more specifically to a kind of intelligentized vehicle auxiliary braking
Control system and its control method belong to automobile and parts manufacturing technology field.
Background technique
Recently as the raising of the rapid growth, the useful load of lorry and travel speed of Chinese truck sales volume, with truck
Relevant traffic accident is also more and more, and the traffic safety of truck especially heavy truck becomes everybody focus.At this
It is because caused by the problem of motor vehicle braking system, because if freight car braking also relies on rubbing for brake block mostly in a little accidents
It wipes to reach braking effect, will lead to the rising of brake rim temperature in prolonged down hill braking, brake block overheat will appear system
Dynamic failure, or even cause to burn.
Therefore, major heavy truck main engine plants have introduced different auxiliary braking system to promote vehicle braking performances,
Currently, auxiliary braking system is mainly following three types in heavy truck industry: 1, engine brake: it is used for vehicle to be a kind of
Deceleration and control complemental brake system, after vehicle launch, by change engine exhaust port running, make to start
Machine becomes to absorb the air compressor of power, and the active force to slow down is provided to the driving wheel of vehicle；It realizes and does not use vehicle driving
Improve the control to vehicle in the case of brake, slowing down speed of engine can reduce the maintenance of vehicle driving brake, mention
Speed, reduction vehicle operating cost when high long descending.2, foundation brakes liquid distribution: it is when primary brake system works to master
The device of brake spray cooling, when mainly alleviating foundation brakes lower long slope continuous braking, foundation brakes fever decaying is even
The problem of failure.3, Retarder: it is the device that braking energy is transmitted and consumed using liquid medium, and Retarder is just
As a big oil pump, only it is the oil of fuel pump outlet, by stopping the measures such as decompression heating by after energy dissipation, and from suction
Hydraulic fluid port is pumped into, and is recycled；Under equal volume or weight, the power of the power ratio current vortex retarder of Retarder is eager to excel
Much larger, as long as heat-sinking capability is met, the combination of it and primary brake system can greatly improve the braking power of vehicle, and
And stopping power is unattenuated during continuous braking, does not fail；Meanwhile Retarder body itself has a safety feature, it is best
Not additional security risk；Retarder on truck, weight are no more than 100 kilograms, substantially to cargo capacity
Do not influence.
But although engine brake only needs to do slight change to engine, increasing seldom cost, it is braked
Power wretched insufficiency, the braking power of engine exhaust and brake are only capable of reaching 1/4 or so of engine power itself；In addition, high speed
Engine exhaust and brake is used when driving, engine can be damaged.Although foundation brakes liquid distribution solves most fatal
Cross heat fade Problem of Failure, but it reduces the stopping power of foundation brakes cold conditions, accelerates the rate of wear of brake, together
When cooling water be sprinkled upon on road surface, the frictional force of all vehicular traffic wheels and ground can be weakened；In addition, the water carrying capacity of vehicle is up to
Several hundred to 1,000 kilograms, cargo ability is had a significant impact, can not fundamentally solve that foundation brakes face asks
Topic.Although Retarder braking power under various speed is big, braking distance is short, and can steadily continue under various speed
Braking；But for its heat-sinking capability there is no so readily satisfying, it uses the water-cooled system of engine in actual use,
If this set cooling system does not increase, the oil medium inside Retarder has the danger burnt, engine cooling system
Water, which has boiling, leads to the danger of explosion；And greater engine cooling system two approach nothing more than: first is that increasing radiator
The diameter of area and radiator fan, second is that increasing air quantity in the case where same fan diameter, but the feasibility of this change is real
It is also poor far from the requirement for fully meeting heat radiation power limited；Further solution can be cold with sensor close supervision
But the temperature of water and retarder inner sealing oil medium temperature be shut off retarder once being more than warning temperature and alarm
Parking, and this is also only at the caving-in bash of security consideration, cannot tackle the problem at its root.
Summary of the invention
It is an object of the invention to for the deficiency of brake force existing for existing vehicle auxiliary braking system or to vehicle
Cargo capacity has a significant impact or heat-sinking capability is not easy the problems such as meeting, and provides a kind of intelligentized vehicle auxiliary braking
Control system and its control method.
To achieve the above object, the technical solution of the invention is as follows: a kind of intelligentized vehicle auxiliary braking control system
System, automatic gear-box configuration vehicle on, this auxiliary braking control system include entire car controller, engine controller, from
Dynamic gearbox control, Retarder controller, instrument, vehicle speed sensor, self-replaced type auxiliary braking grading control switch
Handle and gas pedal, the vehicle speed sensor are connect with instrument, the entire car controller, engine controller, automatic
Gearbox control, Retarder controller are connected with each other between instrument, the self-replaced type auxiliary braking grading control
Switch knob and gas pedal are connect with entire car controller；In the vehicle of manual transmission configuration, the control of this auxiliary braking
System includes entire car controller, engine controller, Retarder controller, instrument, vehicle speed sensor, self-replaced type auxiliary
Brake grading control switch knob, gas pedal clutch pedal microswitch and transmission neutral switch, the clutch
Pedal microswitch is located at below clutch pedal, and the transmission neutral switch is located on gearbox ontology, the vehicle
Fast sensor is connect with instrument, the entire car controller, engine controller, Retarder controller, phase between instrument
It connects, the self-replaced type auxiliary braking grading control switch knob, clutch pedal microswitch, transmission neutral are opened
It closes and gas pedal is connect with entire car controller；It is provided on the self-replaced type auxiliary braking grading control switch knob
Self-replaced type increases gear switch, self-replaced type downshift switch, one key of self-replaced type and exits switch, and self-replaced type increases the every promotion of gear switch
Auxiliary braking gear increases by 1 grade, and self-replaced type downshift switch is every to push an auxiliary braking gear to reduce 1 grade, Self-resetting
One key of formula, which exits switch, which often to be pressed, once will lead to auxiliary brake function and directly exits.
In the vehicle of automatic gear-box configuration, the entire car controller and engine controller, automatic gear-box control
It is connected between device processed, Retarder controller and instrument by CAN bus, the mode of message transmitting includes J3939 standard
Message and the privately owned message of DFCV, wherein J1939 standard message includes: the speed signal, automatic that instrument is sent to entire car controller
Gearbox control is sent to the clutch engagement signal of entire car controller and neutral signal, engine controller are sent to full-vehicle control
The coolant temperature signal of device；Wherein the privately owned message of DFCV includes: entire car controller request engine controller activation engine
The percentage that braking negative torque percentage signal, the entire car controller request engine control activation electronic fan of brake work
Braking negative torque percentage signal, the vehicle of signal, entire car controller request Retarder controller activation Retarder
The auxiliary braking gear that controller is sent to instrument shows that signal, entire car controller are sent to the auxiliary braking activation prompting of instrument
Signal；In the vehicle of manual transmission configuration, the entire car controller and engine controller, Retarder controller
It being connected between instrument by CAN bus, the mode of message transmitting includes J3939 standard message and the privately owned message of DFCV,
Middle J1939 standard message includes: that instrument is sent to the speed signal of entire car controller, engine controller is sent to full-vehicle control
The coolant temperature signal of device；Wherein the privately owned message of DFCV includes: entire car controller request engine controller activation engine
The percentage that braking negative torque percentage signal, the entire car controller request engine control activation electronic fan of brake work
Braking negative torque percentage signal, the vehicle of signal, entire car controller request Retarder controller activation Retarder
The auxiliary braking gear that controller is sent to instrument shows that signal, entire car controller are sent to the auxiliary braking activation prompting of instrument
Signal.
A kind of control method of intelligentized vehicle auxiliary braking control system, is included the steps that following: Step 1: vehicle
Controller receives the activation request of self-replaced type auxiliary braking grading control switch knob gear, and entire car controller is first to vehicle shape
State is judged that meet following state when simultaneously: clutch pedal is not operated, gearbox is not in neutral gear position, gas pedal
Be not operated, speed be greater than 0 and engine speed be greater than 1000rpm when, entire car controller activly request engine controller swash
Engine brake work living；Step 2: the Retarder that entire car controller sends respective notch requests activation signal, fluid power
Buffer controller controls Retarder work；Step 3: entire car controller believes auxiliary braking control system real-time gear
Breath passes to instrument, and gear information is shown to driver in a manner of patterned in instrument；Step 4: exiting auxiliary system
Dynamic control function.
When speed is greater than 30km/h and driver unclamps gas pedal and passes through primary brake system and directly carries out vehicle braking
Ratio when being greater than a threshold value, entire car controller issues the signal that auxiliary braking system activation is reminded to instrument, and instrument connecing
It receives and sound is carried out to driver by display screen after the signal and text is reminded, as driver steps on the throttle pedal or master again
Dynamic activation auxiliary braking control system, then prompting function exits.
Self-replaced type auxiliary braking grading control switch knob gear in the step 1 is divided into 4 grades: first grades for perseverance
Fast shelves, second gear are 20% braking torque gear, and third gear is 60% braking torque gear, and fourth speed is 100% braking torque shelves
Position；When driver requests auxiliary braking control system constant speed shelves gear by self-replaced type auxiliary braking grading control switch knob
When, auxiliary braking control system can automatically select be able to maintain current vehicle speed most suitable auxiliary braking mode come into
Row work, at this point, each auxiliary braking mode required for play braking torque ratio completely by auxiliary braking control system Lai
Reasonable distribution is carried out, is not necessarily to manual intervention, the braking torque that auxiliary braking control system is brought into play is between 0%~100%
Stepless variation；When driver requests auxiliary braking control system by self-replaced type auxiliary braking grading control switch knob gear
When second gear, third gear and fourth speed, auxiliary braking control system can automatically select the auxiliary for being able to maintain current brake torque
Mode of braking works, at this point, the braking torque that auxiliary braking control system can play under each gear is certain, but each
The braking torque ratio played required for auxiliary braking mode carries out reasonable distribution by auxiliary braking control system completely, is not necessarily to
Manual intervention.
It includes exiting auxiliary braking control function completely and temporarily moving back that auxiliary braking control function is exited in the step 4
Auxiliary braking control function out, this temporarily exit auxiliary braking control function when meeting entry condition can again automatically into.
The auxiliary braking control function that exits completely includes following several situations: 11, driver actively presses runback
One key of self-replaced type on the formula auxiliary braking grading control switch knob of position exits switch；12, in minimum brake range, then into
Row downshift operation.
Described temporarily to exit auxiliary braking control function include following several situations: 21, driver steps on the throttle pedal；
22, driver's let slip the clutch；23, gearbox-gear is placed in neutral gear by driver；24, engine speed is lower than
1000rpm；25, gearbox occurs shift-down action or in shift process.
Compared with prior art, the beneficial effects of the present invention are:
1, the vehicle auxiliary braking control system in the present invention has a safety feature, without additional security risk；High reliablity, can
Ensure can effectively work under any circumstance；And maintenance cost is low.
2, the vehicle auxiliary braking control system in the present invention is effectively by primary brake system, engine brake, fluid power
Retarder three, which is effectively combined, to be uniformly controlled, and solves what the brake apparatus of unification was applied on heavy trucks the driver
Limitation more rationally effectively improves the braking effect of vehicle.
3, braking torque is divided into several suitable by the control method in the present invention by auxiliary braking grading control function
Gear uses in different driving environments for driver, the working conditions of the various braking systems of simultaneous real-time monitoring, flexibly
The braking torque ratio that various auxiliary braking system are played under fixed gear is distributed, had both improved various auxiliary brakings in this way
The working efficiency of system also increases the safety of vehicle driving.
4, the driving status of the control method meeting automatic detection vehicle in the present invention, when vehicle is in long range damped condition
When lower and driver forgets actively to open auxiliary brake function, timely driver can be reminded to open auxiliary braking system.
Detailed description of the invention
Fig. 1 is manual transmission auxiliary braking control system figure in the present invention.
Fig. 2 is automatic gear-box auxiliary braking control system figure in the present invention.
Specific embodiment
Below in conjunction with Detailed description of the invention and specific embodiment, the present invention is described in further detail.
Specific embodiment one:
Referring to fig. 2, in the vehicle of automatic gear-box configuration, this auxiliary braking control system includes entire car controller, engine
Controller, automatic gear-box controller, Retarder controller, instrument, vehicle speed sensor, the classification of self-replaced type auxiliary braking
Control switch handle and gas pedal.The vehicle speed sensor is connect with instrument, specifically, vehicle speed sensor is connected by rigid line
To instrument；The entire car controller, engine controller, automatic gear-box controller, Retarder controller, instrument it
Between be connected with each other, specifically, entire car controller, engine controller, automatic gear-box controller, Retarder controller,
Mutual information is carried out by CAN bus between instrument to transmit；The self-replaced type auxiliary braking grading control switch
Handle and gas pedal are connect with entire car controller by rigid line.
Referring to Fig. 1, in the vehicle of manual transmission configuration, this auxiliary braking control system includes entire car controller, hair
Motivation controller, Retarder controller, instrument, vehicle speed sensor, self-replaced type auxiliary braking grading control switch knob,
Gas pedal clutch pedal microswitch and transmission neutral switch.The vehicle speed sensor is connect with instrument, specifically,
Vehicle speed sensor is connected to instrument by rigid line；The entire car controller, engine controller, Retarder controller, instrument
It is connected with each other between table, specifically, passing through between entire car controller, engine controller, Retarder controller, instrument
CAN bus carries out mutual information transmitting；The self-replaced type auxiliary braking grading control switch knob, clutch are stepped on
Plate microswitch, transmission neutral switch and gas pedal are connect with entire car controller by rigid line.The clutch is stepped on
Plate microswitch is located at below clutch pedal, and when driver tips into or out clutch pedal, microswitch can be sensed
The movement of driver and feedback voltage signal is to entire car controller；The transmission neutral switch is located on gearbox ontology,
When driver, which operates gearbox shift lever, to shift gears, neutral position switch can sense the movement of driver and feedback voltage signal
To entire car controller.
Referring to Fig. 1 to Fig. 2, in the vehicle of automatic gear-box configuration and in the vehicle of manual transmission configuration, wherein
Entire car controller, engine controller, Retarder controller, instrument, vehicle speed sensor, self-replaced type auxiliary braking point
Grade control switch handle and gas pedal are the identical same parts of structure and function.The self-replaced type auxiliary braking point
It is provided with self-replaced type increasing gear switch, self-replaced type downshift switch, one key of self-replaced type on grade control switch handle and exits switch,
Self-replaced type increases the every auxiliary braking gear of promotion of gear switch and increases by 1 grade, and the gear after increasing is kept after release；Self-replaced type
Downshift switch is every to push an auxiliary braking gear to reduce 1 grade, and the gear after reducing is kept after release；One key of self-replaced type exits
Switch is often pressed once, and no matter at this time which kind of gear auxiliary braking gear is in, and will lead to auxiliary brake function and directly exits.
Further, the entire car controller and engine controller, automatic in the vehicle of automatic gear-box configuration
It is connected, i.e., is transmitted by CAN bus message by CAN bus between gearbox control, Retarder controller and instrument
Information；The mode of its message transmitting includes J3939 standard message and the privately owned message of DFCV.Wherein J1939 standard message includes: instrument
Table is sent to the speed signal of entire car controller, automatic gear-box controller is sent to the clutch engagement signal and sky of entire car controller
Gear signal, engine controller are sent to the coolant temperature signal of entire car controller；Meanwhile in order to maintain Retarder just
Cool but liquid temperature required for often working, entire car controller can also monitor coolant temperature in real time, and pass through control electronic fan
Revolving speed adjust and maintain the temperature of coolant liquid.Wherein the privately owned message of DFCV includes: entire car controller request engine control
Device activates the braking negative torque percentage signal of engine brake, entire car controller request engine control activation electronic fan
Percentage signal, the entire car controller request Retarder controller of work activate the braking negative torque percentage of Retarder
Show that signal, entire car controller are sent to the auxiliary of instrument than the auxiliary braking gear that signal, entire car controller are sent to instrument
Braking activation alerting signal.
And in the vehicle of manual transmission configuration, the entire car controller and engine controller, Retarder
It is connected between controller and instrument by CAN bus, i.e., information is transmitted by CAN bus message；The mode packet of its message transmitting
Include J3939 standard message and the privately owned message of DFCV.Wherein J1939 standard message includes: the vehicle that instrument is sent to entire car controller
Fast signal engine controller is sent to the coolant temperature signal of entire car controller；Meanwhile in order to maintain Retarder just
Cool but liquid temperature required for often working, entire car controller can also monitor coolant temperature in real time, and pass through control electronic fan
Revolving speed adjust and maintain the temperature of coolant liquid.Wherein the privately owned message of DFCV includes: entire car controller request engine control
Device activates the braking negative torque percentage signal of engine brake, entire car controller request engine control activation electronic fan
Percentage signal, the entire car controller request Retarder controller of work activate the braking negative torque percentage of Retarder
Show that signal, entire car controller are sent to the auxiliary of instrument than the auxiliary braking gear that signal, entire car controller are sent to instrument
Braking activation alerting signal.
Embodiment two:
A kind of control method of intelligentized vehicle auxiliary braking control system, includes the steps that following:
Step 1: entire car controller receives the activation request of self-replaced type auxiliary braking grading control switch knob gear, it is contemplated that
The a few thing conditions dictate of engine brake, entire car controller first judge whole vehicle state, under meeting simultaneously
Column-shaped state: clutch pedal is not operated, gearbox is not neutral gear position, gas pedal are operated, speed is greater than 0 and sends out
When motivation revolving speed is greater than 1000rpm, entire car controller activly request engine controller activates engine brake work.It is in
Traffic safety considers that, when the activation of auxiliary braking control system, Brake lamp can be lit.
Step 2: entire car controller is receiving the activation request of self-replaced type auxiliary braking grading control switch knob gear
When, the Retarder that entire car controller sends respective notch requests activation signal, and it is slow that Retarder controller controls fluid power
Fast device work.
Step 3: entire car controller is by auxiliary braking control system real-time gear when the activation of auxiliary braking control system
Information passes to instrument, and gear information is shown to driver in a manner of patterned in instrument.
Step 4: exiting auxiliary braking control function.
Further, include the steps that before the step 1 following: when speed is greater than 30km/h and driver unclamps
Gas pedal and when directly carrying out the ratio of vehicle braking greater than a threshold value by primary brake system, which passes through vehicle
Experimental Calibration obtains, and entire car controller issues the signal that auxiliary braking system activation is reminded to instrument；Instrument is receiving this
It carries out sound and text to driver by display screen after signal to remind, as driver steps on the throttle pedal or active activation again
Auxiliary braking control system, then prompting function exits.
Specifically, the self-replaced type auxiliary braking grading control switch knob gear in the step 1 is at most divided into 4 grades:
First grade is constant speed shelves, and second gear is 20% braking torque gear, and third gear is 60% braking torque gear, and fourth speed is 100% system
Dynamic torque gear.When driver requests auxiliary braking control system permanent by self-replaced type auxiliary braking grading control switch knob
When fast shelves gear, auxiliary braking control system can automatically select the most suitable auxiliary braking for being able to maintain current vehicle speed
Mode works；At this point, the braking torque ratio played required for each auxiliary braking mode is completely by auxiliary braking control
System processed carries out reasonable distribution, is not necessarily to manual intervention, braking torque that auxiliary braking control system is brought into play 0%~
Stepless variation between 100%.When driver requests auxiliary braking by self-replaced type auxiliary braking grading control switch knob gear
When control system second gear, third gear and fourth speed, auxiliary braking control system, which can automatically select, is able to maintain current brake torsion
The auxiliary braking mode of square works；At this point, the braking torque one that auxiliary braking control system can play under each gear
It is fixed, but the braking torque ratio played required for each auxiliary braking mode is carried out by auxiliary braking control system rationally completely
Distribution is not necessarily to manual intervention.Auxiliary braking control system automatically selects the mode of braking for needing to activate herein and reasonable distribution is each
The control algolithm of the braking torque ratio played required for a auxiliary braking mode by entire car controller internal algorithm logic meter
It obtains；The braking of brake is realized eventually by the mode for sending braking negative torque percentage signal in the privately owned message of DFCV
Control from view of profit.
Specifically, exited in the step 4 auxiliary braking control function include exit completely auxiliary braking control function and
Auxiliary braking control function temporarily is exited, this temporarily exits auxiliary braking control function can be automatic again when meeting entry condition
Into.
Further, the auxiliary braking control function that exits completely includes following several situations: 11, driver's active
One key of self-replaced type pressed on self-replaced type auxiliary braking grading control switch knob exits switch；12, it is braked in minimum
Gear, then carry out downshift operation.
Further, described temporarily to exit auxiliary braking control function include following several situations: 21, driver steps on
Gas pedal；22, driver's let slip the clutch；23, gearbox-gear is placed in neutral gear by driver；24, engine speed
Lower than 1000rpm；25, gearbox occurs shift-down action or in shift process, after shift gears completion and engine peed stable,
Auxiliary braking control system when meeting entry condition can again automatically into.
Referring to Fig. 1 to Fig. 2, this auxiliary braking control system and its various braking systems of control method simultaneous real-time monitoring
Working condition is flexibly distributed the braking torque ratio that various auxiliary braking system are played under fixed gear, was both improved
The working efficiency of various auxiliary braking system also increases the safety of vehicle driving.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, and above structure all shall be regarded as belonging to
Protection scope of the present invention.
Claims (8)
1. a kind of intelligentized vehicle auxiliary braking control system, it is characterised in that: in the vehicle of automatic gear-box configuration, this
Auxiliary braking control system includes entire car controller, engine controller, automatic gear-box controller, Retarder control
Device, instrument, vehicle speed sensor, self-replaced type auxiliary braking grading control switch knob and gas pedal, the speed sensing
Device is connect with instrument, the entire car controller, engine controller, automatic gear-box controller, Retarder controller,
It is connected with each other between instrument, the self-replaced type auxiliary braking grading control switch knob and gas pedal are and full-vehicle control
Device connection；
In the vehicle of manual transmission configuration, this auxiliary braking control system includes entire car controller, engine controller, liquid
Power buffer controller, instrument, vehicle speed sensor, self-replaced type auxiliary braking grading control switch knob, gas pedal clutch
Device pedal microswitch and transmission neutral switch, the clutch pedal microswitch are located at below clutch pedal, institute
The transmission neutral switch stated is located on gearbox ontology, and the vehicle speed sensor is connect with instrument, the full-vehicle control
Device, Retarder controller, is connected with each other between instrument, the self-replaced type auxiliary braking classification engine controller
Control switch handle, clutch pedal microswitch, transmission neutral switch and gas pedal are connect with entire car controller；
Self-replaced type increasing gear switch is provided on the self-replaced type auxiliary braking grading control switch knob, self-replaced type subtracts
Gear switch, one key of self-replaced type exit switch, and self-replaced type increases the every auxiliary braking gear of promotion of gear switch and increases by 1 grade, from
Homing position type downshift switch is every to push an auxiliary braking gear to reduce 1 grade, and one key of self-replaced type exits switch and often presses primary meeting
Auxiliary brake function is caused directly to exit.
2. a kind of intelligentized vehicle auxiliary braking control system according to claim 1, it is characterised in that: becoming automatically
In the vehicle of fast case configuration, the entire car controller and engine controller, automatic gear-box controller, Retarder control
It is connected between device processed and instrument by CAN bus, the mode of message transmitting includes J3939 standard message and the privately owned report of DFCV
Text, wherein J1939 standard message includes: that instrument is sent to the speed signal of entire car controller, automatic gear-box controller is sent
Clutch engagement signal and neutral signal, engine controller to entire car controller are sent to the coolant temperature letter of entire car controller
Number；Wherein the privately owned message of DFCV includes: the braking negative twist of entire car controller request engine controller activation engine brake
Percentage signal, the entire car controller that square percentage signal, entire car controller request engine control activation electronic fan work
Braking negative torque percentage signal, the entire car controller of request Retarder controller activation Retarder are sent to instrument
Auxiliary braking gear show that signal, entire car controller are sent to the auxiliary braking activation alerting signal of instrument；
In the vehicle of manual transmission configuration, the entire car controller and engine controller, Retarder controller
It being connected between instrument by CAN bus, the mode of message transmitting includes J3939 standard message and the privately owned message of DFCV,
Middle J1939 standard message includes: that instrument is sent to the speed signal of entire car controller, engine controller is sent to full-vehicle control
The coolant temperature signal of device；Wherein the privately owned message of DFCV includes: entire car controller request engine controller activation engine
The percentage that braking negative torque percentage signal, the entire car controller request engine control activation electronic fan of brake work
Braking negative torque percentage signal, the vehicle of signal, entire car controller request Retarder controller activation Retarder
The auxiliary braking gear that controller is sent to instrument shows that signal, entire car controller are sent to the auxiliary braking activation prompting of instrument
Signal.
3. a kind of control method of intelligentized vehicle auxiliary braking control system, which is characterized in that include the steps that following:
Step 1: entire car controller receives the activation request of self-replaced type auxiliary braking grading control switch knob gear, vehicle control
Device processed judges whole vehicle state that meet following state when simultaneously: clutch pedal is not operated, gearbox is not in sky first
Gear is set, gas pedal is not operated, speed is greater than 0 and when engine speed is greater than 1000rpm, and entire car controller is actively asked
Ask engine controller activation engine brake work；
Step 2: the Retarder that entire car controller sends respective notch requests activation signal, Retarder controller control
Retarder work processed；
Step 3: auxiliary braking control system real-time gear information is passed to instrument by entire car controller, and to scheme in instrument
Gear information is shown to driver by the mode of shape；
Step 4: exiting auxiliary braking control function.
4. a kind of control method of intelligentized vehicle auxiliary braking control system according to claim 3, feature exist
In include thing steps that before the step 1 following: when speed is greater than 30km/h and driver unclamps gas pedal and passes through
When the ratio that primary brake system directly carries out vehicle braking is greater than a threshold value, entire car controller issues auxiliary braking system to instrument
The signal that system activation is reminded, instrument pass through display screen upon receipt of the signal and carry out sound and text prompting to driver, such as
Driver steps on the throttle pedal or active activation auxiliary braking control system again, then prompting function exits.
5. a kind of control method of intelligentized vehicle auxiliary braking control system according to claim 3, feature exist
In, it is constant speed shelves that the self-replaced type auxiliary braking grading control switch knob gear in the step 1, which is divided into 4 grades: first grades,
Second gear is 20% braking torque gear, and third gear is 60% braking torque gear, and fourth speed is 100% braking torque gear；
When driver requests auxiliary braking control system constant speed shelves shelves by self-replaced type auxiliary braking grading control switch knob
When position, auxiliary braking control system can automatically select the most suitable auxiliary braking mode for being able to maintain current vehicle speed
It works, at this point, the braking torque ratio played required for each auxiliary braking mode is completely by auxiliary braking control system
Reasonable distribution is carried out, is not necessarily to manual intervention, the braking torque that auxiliary braking control system is brought into play is 0%~100%
Between stepless variation；When driver requests auxiliary braking control by self-replaced type auxiliary braking grading control switch knob gear
When system second gear, third gear and fourth speed, auxiliary braking control system, which can automatically select, is able to maintain current brake torque
Auxiliary braking mode works, at this point, the braking torque that auxiliary braking control system can play under each gear is certain, but
The braking torque ratio played required for each auxiliary braking mode carries out reasonable distribution by auxiliary braking control system completely,
Without manual intervention.
6. a kind of control method of intelligentized vehicle auxiliary braking control system according to claim 3, feature exist
In: it includes exiting auxiliary braking control function completely and temporarily exiting auxiliary that auxiliary braking control function is exited in the step 4
Brake control function, this temporarily exit auxiliary braking control function when meeting entry condition can again automatically into.
7. a kind of control method of intelligentized vehicle auxiliary braking control system according to claim 6, feature exist
In the auxiliary braking control function that exits completely includes following several situations:
11, one key of self-replaced type that driver actively presses on self-replaced type auxiliary braking grading control switch knob exits out
It closes；
12, in minimum brake range, then downshift operation is carried out.
8. a kind of control method of intelligentized vehicle auxiliary braking control system according to claim 6, feature exist
In described temporarily to exit auxiliary braking control function include following several situations:
21, driver steps on the throttle pedal；
22, driver's let slip the clutch；
23, gearbox-gear is placed in neutral gear by driver；
24, engine speed is lower than 1000rpm；
25, gearbox occurs shift-down action or in shift process.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111055684A (en) * | 2019-12-31 | 2020-04-24 | 重庆德科电子仪表有限公司 | Automobile instrument panel pointer display control system and method |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101474990A (en) * | 2009-01-15 | 2009-07-08 | 鲁东大学 | Large-sized vehicle intelligent synthetic brake control system |
| CN104912676A (en) * | 2015-06-17 | 2015-09-16 | 东风商用车有限公司 | Brake priority control system for commercial vehicle |
| CN105564413A (en) * | 2014-10-09 | 2016-05-11 | 陕西重型汽车有限公司 | Intelligent vehicle braking managing control system, method, device |
| CN205554165U (en) * | 2016-02-22 | 2016-09-07 | 陕西同力重工股份有限公司 | Auxiliary brake's of vehicle control system |
| CN106143473A (en) * | 2015-04-13 | 2016-11-23 | 陕西重型汽车有限公司 | Vehicle auxiliary braking coordinated control system and control method |
| CN106965791A (en) * | 2017-04-13 | 2017-07-21 | 安徽江淮汽车集团股份有限公司 | A kind of truck retarder control system |
| CN108501735A (en) * | 2018-04-20 | 2018-09-07 | 东风商用车有限公司 | A kind of engine braking and retarder Associated brake control structure and its control method |
| CN209381990U (en) * | 2018-10-12 | 2019-09-13 | 东风商用车有限公司 | A kind of intelligentized vehicle auxiliary braking control system |
-
2018
- 2018-10-12 CN CN201811190753.8A patent/CN109177965A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101474990A (en) * | 2009-01-15 | 2009-07-08 | 鲁东大学 | Large-sized vehicle intelligent synthetic brake control system |
| CN105564413A (en) * | 2014-10-09 | 2016-05-11 | 陕西重型汽车有限公司 | Intelligent vehicle braking managing control system, method, device |
| CN106143473A (en) * | 2015-04-13 | 2016-11-23 | 陕西重型汽车有限公司 | Vehicle auxiliary braking coordinated control system and control method |
| CN104912676A (en) * | 2015-06-17 | 2015-09-16 | 东风商用车有限公司 | Brake priority control system for commercial vehicle |
| CN205554165U (en) * | 2016-02-22 | 2016-09-07 | 陕西同力重工股份有限公司 | Auxiliary brake's of vehicle control system |
| CN106965791A (en) * | 2017-04-13 | 2017-07-21 | 安徽江淮汽车集团股份有限公司 | A kind of truck retarder control system |
| CN108501735A (en) * | 2018-04-20 | 2018-09-07 | 东风商用车有限公司 | A kind of engine braking and retarder Associated brake control structure and its control method |
| CN209381990U (en) * | 2018-10-12 | 2019-09-13 | 东风商用车有限公司 | A kind of intelligentized vehicle auxiliary braking control system |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111055684B (en) * | 2019-12-31 | 2021-05-28 | 重庆德科电子仪表有限公司 | Automobile instrument panel pointer display control system and method |
| CN111055684A (en) * | 2019-12-31 | 2020-04-24 | 重庆德科电子仪表有限公司 | Automobile instrument panel pointer display control system and method |
| CN112009444A (en) * | 2020-08-21 | 2020-12-01 | 盐城工学院 | Composite braking system of electric vehicle |
| CN112124272A (en) * | 2020-09-30 | 2020-12-25 | 湖南行必达网联科技有限公司 | Combined braking system and method for vehicle |
| CN112124272B (en) * | 2020-09-30 | 2021-10-29 | 湖南行必达网联科技有限公司 | Combined braking system and method for vehicle |
| CN113460020B (en) * | 2021-06-30 | 2022-12-09 | 重庆长安汽车股份有限公司 | Vehicle braking control method and control system based on braking capability |
| CN113460020A (en) * | 2021-06-30 | 2021-10-01 | 重庆长安汽车股份有限公司 | Vehicle braking control method and control system based on braking capability |
| CN113799775A (en) * | 2021-09-24 | 2021-12-17 | 潍柴动力股份有限公司 | Vehicle deceleration control method and control device |
| CN114013422A (en) * | 2021-10-31 | 2022-02-08 | 东风商用车有限公司 | Auxiliary braking system and method for vehicle-mounted engine and vehicle |
| CN114013422B (en) * | 2021-10-31 | 2023-05-30 | 东风商用车有限公司 | Auxiliary braking system and method of vehicle-mounted engine and vehicle |
| CN114132666A (en) * | 2021-12-08 | 2022-03-04 | 福建龙马环卫装备股份有限公司 | Multi-gear output power adjusting system and method |
| CN114670673A (en) * | 2022-03-11 | 2022-06-28 | 凯博易控车辆科技(苏州)股份有限公司 | Braking torque control system and method |
| CN114670673B (en) * | 2022-03-11 | 2024-02-27 | 凯博易控车辆科技(苏州)股份有限公司 | Braking torque control system and method |
| CN115042755A (en) * | 2022-07-27 | 2022-09-13 | 东风商用车有限公司 | Auxiliary braking dynamic control method |
| CN115257667A (en) * | 2022-08-22 | 2022-11-01 | 东风柳州汽车有限公司 | Auxiliary braking hierarchical control method and system for heavy truck in new energy |
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