CN108757917A - The coasting control systems and method of electric vehicle - Google Patents
The coasting control systems and method of electric vehicle Download PDFInfo
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- CN108757917A CN108757917A CN201810866930.3A CN201810866930A CN108757917A CN 108757917 A CN108757917 A CN 108757917A CN 201810866930 A CN201810866930 A CN 201810866930A CN 108757917 A CN108757917 A CN 108757917A
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- electric vehicle
- jackshaft
- gear
- input shaft
- output
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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
- 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
- F16H61/0213—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 characterised by the method for generating shift signals
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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
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/006—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion power being selectively transmitted by either one of the parallel flow paths
-
- 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
- F16H37/00—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00
- F16H37/02—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings
- F16H37/06—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
- F16H37/08—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing
- F16H37/0806—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with a plurality of driving or driven shafts
- F16H37/0813—Combinations of mechanical gearings, not provided for in groups F16H1/00 - F16H35/00 comprising essentially only toothed or friction gearings with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts with differential gearing with a plurality of driving or driven shafts with only one input shaft
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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
- F16H59/14—Inputs being a function of torque or torque demand
-
- 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
- F16H59/14—Inputs being a function of torque or torque demand
- F16H59/18—Inputs being a function of torque or torque demand dependent on the position of the accelerator pedal
-
- 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
- F16H59/50—Inputs being a function of the status of the machine, e.g. position of doors or safety belts
- F16H59/54—Inputs being a function of the status of the machine, e.g. position of doors or safety belts dependent on signals from the brakes, e.g. parking brakes
-
- 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
- F16H59/68—Inputs being a function of gearing status
Abstract
The present invention proposes a kind of coasting control systems and method of electric vehicle, wherein the control system includes：Speed changer, wherein, input shaft in speed changer is engaged with driving motor to transmit power caused by driving motor, power on input shaft is transmitted to by first clutch in speed changer or two grades of clutches on jackshaft, to transmit power by jackshaft wheel is transferred to output shaft, then by output section；Entire car controller, the status information for acquiring electric vehicle, and driving instruction is slided according to status information generation；Gearbox controller, for receive slide driving instruction when, first clutch and two grades of throw-out-of clutches are controlled, so that output shaft drives output section and jackshaft to rotate with wheel.It can not only make electric vehicle as a result, while meet the requirement of acceleration time index and max. speed index, and the resistance of transmission system can be reduced when electric vehicle enters coasting mode, to improve the economy of vehicle.
Description
Technical field
The present invention relates to the coasting control systems and a kind of electricity of electric vehicle engineering field more particularly to a kind of electric vehicle
Electrical automobile slides control method.
Background technology
Currently, electric vehicle substantially uses the transmission scheme of single-speed deceleration device, the reason is that thinking electric vehicle
The rotating speed of driving motor is relatively high, and the range in the high efficiency rotating speed area of driving motor is bigger, using single-speed deceleration device
Meet the accelerating ability of electric vehicle and the requirement of max. speed.
However, the above-mentioned transmission scheme using single-speed deceleration device is only capable of meeting low-speed electronic automobile and general applications
The requirement of electric vehicle requires dynamic property, economic index relatively high electric vehicle, acceleration time index and highest
Speed index is then difficult to take into account.
Therefore, in the related technology, some electric vehicles by using speed changer replace single-speed deceleration device, solve for
Dynamic property, economic index require the acceleration time index of relatively high electric vehicle to be asked with what max. speed index was difficult to take into account
Topic.But during by transmission control electric vehicle normal operation, when electric vehicle enters coasting mode,
Energy regenerating it is less efficient, cause the economy of vehicle poor.
Invention content
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, the present invention
First purpose is to propose a kind of coasting control systems of electric vehicle, when can not only make electric vehicle while meet acceleration
Between index and max. speed index requirement, and the resistance of transmission system can be reduced when electric vehicle enters coasting mode
Power to promote the efficiency of electric automobile energy recycling, and then improves the economy of vehicle.
What second object of the present invention was to propose a kind of electric vehicle slides control method.
In order to achieve the above object, first aspect present invention embodiment proposes a kind of coasting control systems of electric vehicle, packet
It includes：Speed changer, the speed changer include first clutch, two grades of clutches, input shaft, jackshaft, output shaft and output section,
Wherein, the input shaft is engaged with driving motor to transmit power caused by the driving motor, dynamic on the input shaft
Power is transmitted to by the first clutch or two grades of clutches on the jackshaft, dynamic to be transmitted by the jackshaft
For power to the output shaft, the power of the output shaft is transferred to wheel by the output section；Entire car controller, the vehicle control
Device processed is used to acquire the status information of the electric vehicle, and slides traveling according to the generation of the status information of the electric vehicle and refer to
It enables；Gearbox controller, the gearbox controller are connected with the entire car controller, and the gearbox controller is for connecing
When sliding driving instruction described in receiving, the first clutch and two grades of throw-out-of clutches are controlled, so that the output shaft
The output section and jackshaft rotation are driven with the wheel.
The coasting control systems of electric vehicle according to the ... of the embodiment of the present invention acquire electric vehicle by entire car controller
Status information, and driving instruction is slided according to the generation of the status information of electric vehicle, and received by gearbox controller
To the first clutch and two grades of throw-out-of clutches when sliding driving instruction, controlled in speed changer, so that the output in speed changer
Axis drives output section and jackshaft rotation in speed changer with wheel.It can not only make electric vehicle as a result, while meet acceleration
The requirement of time index and max. speed index, and transmission system can be reduced when electric vehicle enters coasting mode
Resistance to promote the efficiency of electric automobile energy recycling, and then improves the economy of vehicle.
In addition, the coasting control systems of electric vehicle according to the above embodiment of the present invention can also be with following additional
Technical characteristic：
According to one embodiment of present invention, the status information of the electric vehicle includes the depth, described of accelerator pedal
The depth of brake pedal, the output torque of gear signal and the driving motor.
According to one embodiment of present invention, the entire car controller the accelerator pedal and the brake pedal not
It is operated, when the gear signal is D grades and the output torque of the driving motor is zero, driving instruction is slided described in generation.
According to one embodiment of present invention, the first clutch is arranged on the input shaft, and the speed changer is also
Including one shelves gear of input shaft being arranged on the input shaft and one shelves gear of jackshaft being arranged on the jackshaft,
One shelves gear of the input shaft is engaged with one shelves gear of the jackshaft, one shelves gear of the input shaft and the first clutch
It is connected.
According to one embodiment of present invention, two grades of clutches are arranged on the jackshaft, and the speed changer is also
Including the input shaft intermediate gear being arranged on the input shaft and the secondary gear of intermediate shaft being arranged on the jackshaft,
The input shaft intermediate gear is engaged with the secondary gear of intermediate shaft, the secondary gear of intermediate shaft and two grades of clutches
It is connected.
According to one embodiment of present invention, pass through gear drive between the jackshaft and the output shaft, wherein institute
It further includes that the jackshaft output gear being arranged on the jackshaft and the master being arranged on the output shaft subtract to state speed changer
Fast gear, the jackshaft output gear are engaged with the final gear.
According to one embodiment of present invention, the output section includes differential mechanism, and the differential mechanism is arranged in the output
On axis.
To achieve the above object, what second aspect of the present invention embodiment proposed a kind of electric vehicle slides control method,
The electric vehicle includes first clutch, two grades of clutches, input shaft, jackshaft, output shaft and output section, wherein institute
It states input shaft to be engaged with driving motor to transmit power caused by the driving motor, the power on the input shaft passes through institute
It states first clutch or two grades of clutches is transmitted on the jackshaft, to transmit power described in by the jackshaft
The power of output shaft, the output shaft is transferred to wheel by the output section, wherein the described method comprises the following steps：It is logical
The status information that entire car controller acquires the electric vehicle is crossed, and row is slided according to the generation of the status information of the electric vehicle
Sail instruction；When sliding driving instruction described in receiving by gearbox controller, the first clutch and described two are controlled
Shelves throw-out-of clutch, so that the output shaft drives the output section and the jackshaft to rotate with the wheel.
Electric vehicle according to the ... of the embodiment of the present invention slides control method, and electric vehicle is acquired by entire car controller
Status information, and driving instruction is slided according to the generation of the status information of electric vehicle, and received by gearbox controller
To when sliding driving instruction, control first clutch and two grades of throw-out-of clutches so that output shaft with wheel drive output section and
Jackshaft rotates.It can not only make electric vehicle as a result, while meet the requirement of acceleration time index and max. speed index, and
And the resistance of transmission system can be reduced when electric vehicle enters coasting mode, to promote electric automobile energy recycling
Efficiency, and then improve the economy of vehicle.
In addition, the control method that slides of electric vehicle according to the above embodiment of the present invention can also be with following additional
Technical characteristic：
According to one embodiment of present invention, the status information of the electric vehicle includes the depth, described of accelerator pedal
The depth of brake pedal, the output torque of gear signal and the driving motor.
According to one embodiment of present invention, by the entire car controller in the accelerator pedal and the brake pedal
It is not operated, when the gear signal is D grades and the output torque of the driving motor is zero, traveling is slided described in generation
Instruction.
Description of the drawings
Above-mentioned and/or additional aspect and advantage of the invention will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, wherein：
Fig. 1 is the structural schematic diagram according to the coasting control systems of the electric vehicle of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram according to the coasting control systems of the electric vehicle of one embodiment of the invention；
Fig. 3 is the flow chart for sliding control method according to the electric vehicle of the embodiment of the present invention.
Specific implementation mode
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
Below with reference to the accompanying drawings the coasting control systems of the electric vehicle proposed according to embodiments of the present invention and electronic are described
Automobile slides control method.
Fig. 1 is the structural schematic diagram according to the coasting control systems of the electric vehicle of the embodiment of the present invention.As shown in Figure 1,
The coasting control systems of the electric vehicle of the embodiment of the present invention may include speed changer 100, entire car controller 200 and transmission control
Device 300.
Wherein, speed changer 100 may include 110, two grades of clutches 120 of first clutch, input shaft 130, jackshaft 140,
Output shaft 150 and output section 160, wherein input shaft 130 is engaged with driving motor 400 to transmit produced by driving motor 400
Power, the power on input shaft 130 is transmitted to by first clutch 110 or two grades of clutches 120 on jackshaft 140, with
Power is transmitted to output shaft 150 by jackshaft 140, and the power of output shaft 150 is transferred to wheel by output section 160；Vehicle
Controller 200 is used to acquire the status information of electric vehicle, and slides driving instruction according to the generation of the status information of electric vehicle；
Gearbox controller 300 is connected with entire car controller 200, gearbox controller 300 be used for receive slide driving instruction when,
It controls first clutch 110 and two grades of clutches 120 disengages, so that output shaft 150 drives output section 160 and jackshaft with wheel
140 rotations.
According to one embodiment of present invention, the status information of electric vehicle may include that the depth of accelerator pedal, braking are stepped on
The depth of plate, the output torque of gear signal and driving motor 400.
According to one embodiment of present invention, entire car controller 200 be not operated in accelerator pedal and brake pedal, shelves
When position signal is D grades and the output torque of driving motor 400 is zero, driving instruction is slided in generation.
Wherein, the depth of accelerator pedal can be 0%~100%, when accelerator pedal is not operated, entire car controller 200
The depth of collected accelerator pedal is 0%, and when accelerator pedal is floored, the collected acceleration of entire car controller 200 is stepped on
The depth of plate is 100%.The depth of brake pedal can be 0%~100%, when brake pedal is not operated, entire car controller
The depth of 200 collected brake pedals is 0%, when brake pedal is floored, 200 collected braking of entire car controller
The depth of pedal is 100%.
That is, as a kind of possible realization method, the status information of electric vehicle may include the depth of accelerator pedal
The output torque of degree, the depth of brake pedal, gear signal and driving motor 400, i.e. entire car controller 200 can acquire in real time
The output torque of the depth of the accelerator pedal of electric vehicle, the depth of brake pedal, gear signal and driving motor 400.Such as
The status information of 200 collected electric vehicle of fruit entire car controller is：The depth of accelerator pedal is the depth of 0%, brake pedal
Degree is 0%, gear signal is D grades and the output torque of driving motor 400 is zero, then illustrates that electric vehicle enters coasting mode,
Therefore, it produces and slides driving instruction.
It should be noted that as alternatively possible realization method, the status information of electric vehicle may also include acceleration
The output torque of the voltage signal of pedal, the voltage signal of brake pedal, gear signal and driving motor 400, i.e. vehicle control
Device 200 processed can acquire in real time the voltage signal of accelerator pedal of electric vehicle, the voltage signal of brake pedal, gear signal and
The output torque of driving motor 400.If the status information of 200 collected electric vehicle of entire car controller is：Accelerator pedal
Voltage signal be 0V, the voltage signal of brake pedal is 0V, gear signal is D grades and the output torque of driving motor 400 is
Zero, then illustrate that electric vehicle enters coasting mode, therefore, produces and slide driving instruction.
Specifically, during electric vehicle normally travel, gearbox controller 300 (TCU) is according to full-vehicle control
The rotating speed for the driving motor 400 that device 200 (VCU) provides can control first clutch 110 or two grades of clutches in speed changer 100
120 engagements pass through first clutch 110 or two grades so that after the power that driving motor 400 generates is transmitted on input shaft 130
Clutch 120 is transmitted on jackshaft 140.Power on jackshaft 140 passes through output section after being transmitted on output shaft 150
160 are transmitted to wheel, to drive vehicle wheel rotation, to make electric vehicle be travelled with corresponding speed.Speed changer is used as a result,
100 replace the single-speed deceleration device of electric vehicle, and larger torque can not only be exported when electric vehicle starts, and improve vehicle
Accelerating ability, and the max. speed of electric vehicle can be improved, to take into account the acceleration time index and highest of electric vehicle
Speed index.
Further, during controlling electric vehicle normally travel by above-mentioned control mode, vehicle can be passed through
Controller 200 acquires the status information of electric vehicle in real time.When entire car controller 200 collects the status information of electric vehicle
For：The output that the depth of accelerator pedal is 0%, the depth of brake pedal is 0%, gear signal is D grades and driving motor 400
When torque is zero, illustrate that electric vehicle enters coasting mode, therefore, produces and slide driving instruction, and this is slided into traveling and is referred to
Order is sent to gearbox controller 300.Gearbox controller 300 receive slide driving instruction when, control first clutch
110 and two grades of clutches 120 disengage so that output shaft 150 drives output section 160 and jackshaft 140 to rotate with wheel.As a result,
When electric vehicle enters coasting mode, controls first clutch 110 and two grades of clutches 120 disengage, to reduce transmission system
Resistance and then the economy of vehicle is improved, meanwhile, it is capable to shorten to improve the efficiency of electric automobile energy recycling
The working time of the transmission parts (for example, gear, bearing, motor shaft etc.) of electric vehicle, to improve making for transmission parts
Use the service life.
According to one embodiment of present invention, as shown in Fig. 2, first clutch 110 is arranged on input shaft 130, speed change
Device 100 further includes that be arranged on input shaft 130 input shaft one shelves gear 170 and the jackshaft that is arranged on jackshaft 140
One shelves gear 180, one shelves gear 170 of input shaft are engaged with one shelves gear 180 of jackshaft, one shelves gear 170 of input shaft and one grade
Clutch 110 is connected.
According to one embodiment of present invention, as shown in Fig. 2, two grades of clutches 120 are arranged on jackshaft 140, speed change
Device 100 further includes the input shaft intermediate gear 190 being arranged on input shaft 130 and the jackshaft being arranged on jackshaft 140
Intermediate gear 1100, input shaft intermediate gear 190 are engaged with secondary gear of intermediate shaft 1100, secondary gear of intermediate shaft 1100 and two
Shelves clutch 120 is connected.
According to one embodiment of present invention, as shown in Fig. 2, being passed by gear between jackshaft 140 and output shaft 150
It is dynamic, wherein speed changer 100 further includes the jackshaft output gear 1110 being arranged on jackshaft 140 and is arranged in output shaft
Final gear 1120 on 150, jackshaft output gear 1110 are engaged with final gear 1120.
According to one embodiment of present invention, output section 160 includes differential mechanism, and differential mechanism is arranged on output shaft 150.
Specifically, during electric vehicle normally travel, when the rotating speed of driving motor 400 rises to first by 0
When preset rotation speed, i.e. electric vehicle start to walk, gearbox controller 300 can control the first clutch 110 on input shaft 130 to connect
It closes, and controls the disengagement of two grades of clutches 120 on jackshaft 140, at this point, the power that driving motor 400 generates is transmitted to input
After on axis 130, centre is transmitted to by first clutch 110, one shelves gear 170 of input shaft and one shelves gear 180 of jackshaft
On axis 140.Power on jackshaft 140 is transmitted to output shaft by jackshaft output gear 1110 and final gear 1120
150, the power on output shaft 150 is transferred to wheel by differential mechanism.Thereby, it is possible to defeated with lower rotating speed, larger torque
Go out power to drive electric vehicle to run at a low speed.
(it is less than driving motor 400 when the rotating speed of driving motor 400 rises to the second preset rotation speed by the first preset rotation speed
The maximum (top) speed in high efficiency rotating speed area, such as 4500rpm) when, gearbox controller 300 can control two grades on input shaft 130 from
Clutch 120 engages, and controls the disengagement of the first clutch 110 on jackshaft 140, at this point, the power that driving motor 400 generates passes
After being delivered on input shaft 130, passed by two grades of clutches 120, input shaft intermediate gear 190 and secondary gear of intermediate shaft 1100
It is delivered on jackshaft 140.Power on jackshaft 140 is transmitted to by jackshaft output gear 1110 and final gear 1120
Output shaft 150, the power on output shaft 150 are transferred to wheel by differential mechanism.Thereby, it is possible to higher rotating speed, smaller
Torque exports power to drive electric vehicle to run at high speed.
When the rotating speed of driving motor 400 drops to the first preset rotation speed by the second preset rotation speed, i.e., electric vehicle is from a high speed
When traveling is run at a low speed in dropping to, gearbox controller 300 can control the first clutch 110 on input shaft 130 to engage, and
The two grades of clutches 120 controlled on jackshaft 140 disengage, at this point, the power that driving motor 400 generates is transmitted to input shaft 130
After upper, jackshaft 140 is transmitted to by first clutch 110, one shelves gear 170 of input shaft and one shelves gear 180 of jackshaft
On.Power on jackshaft 140 is transmitted to output shaft 150 by jackshaft output gear 1110 and final gear 1120, defeated
Power on shaft 150 is transferred to wheel by differential mechanism.Thereby, it is possible to export power with lower rotating speed, larger torque
It is run at a low speed with driving in electric vehicle.
It can not only be exported larger when electric vehicle is started to walk there are two the multi-speed transmission of gear using tool as a result,
Torque to improve the accelerating ability of vehicle, and can improve the max. speed of electric vehicle, can also make driving motor 400 1
It directly is operated in high efficiency rotating speed area, the capacity usage ratio of electric vehicle is substantially increased, meanwhile, it is capable to improve electric automobile gearshift
Ride comfort.
Further, when the status information that entire car controller 200 collects electric vehicle is：The depth of accelerator pedal is
0%, when the depth of brake pedal is 0%, gear signal is D grades and the output torque of driving motor 400 is zero, illustrate electronic
Automobile enters coasting mode, therefore, produces and slides driving instruction, and this is slided driving instruction and is sent to gearbox controller
300.Gearbox controller 300 receive slide driving instruction when, control first clutch 110 and two grades of clutches 120 be de-
It opens, at this point, driving motor 400, input shaft 130, one shelves gear 170 of input shaft and one shelves gear 180 of jackshaft do not rotate,
Output shaft 150 drives differential mechanism, final gear, jackshaft output gear 1110 and jackshaft 140 to rotate with wheel.
As a result, when electric vehicle enters coasting mode, controls first clutch 110 and two grades of clutches 120 disengage, with
The resistance for reducing transmission system to improve the efficiency of electric automobile energy recycling, and then improves the economy of vehicle, together
When, the working time of the transmission parts (for example, gear, bearing, motor shaft etc.) of electric vehicle can be shortened, passed to improve
The service life of dynamic component.
It should be noted that above-mentioned speed changer 100 may also include P gear mechanisms 1130, wherein the P gear mechanisms 1130 can
The transmission system of completely locked electric vehicle, avoids electric vehicle from generating undesirable movement, to realize electric vehicle
Stopping a train at a target point substantially increases the safety of parking electric automobile braking.
In conclusion the coasting control systems of electric vehicle according to the ... of the embodiment of the present invention, are acquired by entire car controller
The status information of electric vehicle, and driving instruction is slided according to the generation of the status information of electric vehicle, and pass through speed changer control
Device processed receive slide driving instruction when, control speed changer in first clutch and two grades of throw-out-of clutches so that speed change
Output shaft in device drives output section and jackshaft rotation in speed changer with wheel.Electric vehicle can not only be made same as a result,
When meet the requirement of acceleration time index and max. speed index, and can be reduced when electric vehicle enters coasting mode
The resistance of transmission system to promote the efficiency of electric automobile energy recycling, and then improves the economy of vehicle.
Fig. 3 is the flow chart for sliding control method according to the electric vehicle of the embodiment of the present invention.
It should be noted that as shown in Figure 1, the electric vehicle of the embodiment of the present invention may include first clutch, two grades from
Clutch, input shaft, jackshaft, output shaft and output section, wherein input shaft is engaged with driving motor to transmit driving motor institute
The power of generation, the power on input shaft is transmitted to by first clutch or two grades of clutches on jackshaft, to pass through centre
Axis transmits power to output shaft, and the power of output shaft is transferred to wheel by output section.
As shown in figure 3, the electric vehicle of the embodiment of the present invention slides control method, it may include following steps：
S1 is acquired the status information of electric vehicle by entire car controller, and is generated according to the status information of electric vehicle
Slide driving instruction.
S2, by gearbox controller receive slide driving instruction when, control first clutch and two grades of clutches
It disengages, so that output shaft drives output section and jackshaft to rotate with wheel.
According to one embodiment of present invention, the status information of electric vehicle includes the depth of accelerator pedal, brake pedal
Depth, the output torque of gear signal and driving motor.
According to one embodiment of present invention, it is not stepped in accelerator pedal and brake pedal by the entire car controller
Under, gear signal be D grades and when the output torque of driving motor is zero, driving instruction is slided in generation.
It should be noted that the electric vehicle of the embodiment of the present invention slides undisclosed details in control method, please join
The details disclosed in coasting control systems according to the electric vehicle of the embodiment of the present invention, specific I will not elaborate.
Electric vehicle according to the ... of the embodiment of the present invention slides control method, and electric vehicle is acquired by entire car controller
Status information, and driving instruction is slided according to the generation of the status information of electric vehicle, and received by gearbox controller
To when sliding driving instruction, control first clutch and two grades of throw-out-of clutches so that output shaft with wheel drive output section and
Jackshaft rotates.It can not only make electric vehicle as a result, while meet the requirement of acceleration time index and max. speed index, and
And the resistance of transmission system can be reduced when electric vehicle enters coasting mode, to promote electric automobile energy recycling
Efficiency, and then improve the economy of vehicle.
It should be appreciated that each section of the present invention can be realized with hardware, software, firmware or combination thereof.Above-mentioned
In embodiment, software that multiple steps or method can in memory and by suitable instruction execution system be executed with storage
Or firmware is realized.It, and in another embodiment, can be under well known in the art for example, if realized with hardware
Any one of row technology or their combination are realized：With the logic gates for realizing logic function to data-signal
Discrete logic, with suitable combinational logic gate circuit application-specific integrated circuit, programmable gate array (PGA), scene
Programmable gate array (FPGA) etc..
In addition, in the description of the present invention, term "center", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ",
"upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " clockwise ", " inverse time
The orientation or positional relationship of the instructions such as needle ", " axial direction ", " radial direction ", " circumferential direction " is to be based on the orientation or positional relationship shown in the drawings,
Be merely for convenience of description of the present invention and simplification of the description, do not indicate or imply the indicated device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；Can be that machinery connects
It connects, can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary in two elements
The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature can be with "above" or "below" second feature
It is that the first and second features are in direct contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is directly under or diagonally below the second feature, or is merely representative of fisrt feature level height and is less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (10)
1. a kind of coasting control systems of electric vehicle, which is characterized in that including：
Speed changer, the speed changer include first clutch, two grades of clutches, input shaft, jackshaft, output shaft and output
Portion, wherein the input shaft is engaged with driving motor to transmit power caused by the driving motor, on the input shaft
Power is transmitted to by the first clutch or two grades of clutches on the jackshaft, to be transmitted by the jackshaft
For power to the output shaft, the power of the output shaft is transferred to wheel by the output section；
Entire car controller, the entire car controller are used to acquire the status information of the electric vehicle, and according to the electronic vapour
Driving instruction is slided in the status information generation of vehicle；
Gearbox controller, the gearbox controller are connected with the entire car controller, and the gearbox controller is used for
When sliding driving instruction described in receiving, the first clutch and two grades of throw-out-of clutches are controlled, so that the output
Axis drives the output section and the jackshaft to rotate with the wheel.
2. the coasting control systems of electric vehicle according to claim 1, which is characterized in that the state of the electric vehicle
Information includes the depth of accelerator pedal, the output torque of the depth of the brake pedal, gear signal and the driving motor.
3. the coasting control systems of electric vehicle according to claim 2, which is characterized in that the entire car controller is in institute
It states accelerator pedal and the brake pedal is not operated, the gear signal is D grades and the output torque of the driving motor
When being zero, driving instruction is slided described in generation.
4. the coasting control systems of electric vehicle according to claim 1, which is characterized in that the first clutch setting
On the input shaft, the speed changer further includes one shelves gear of input shaft being arranged on the input shaft and is arranged in institute
One shelves gear of jackshaft on jackshaft is stated, one shelves gear of the input shaft is engaged with one shelves gear of the jackshaft, described defeated
Enter one shelves gear of axis with the first clutch to be connected.
5. the coasting control systems of electric vehicle according to claim 1, which is characterized in that two grades of clutches setting
On the jackshaft, the speed changer further includes the input shaft intermediate gear being arranged on the input shaft and is arranged in institute
The secondary gear of intermediate shaft on jackshaft is stated, the input shaft intermediate gear is engaged with the secondary gear of intermediate shaft, in described
Countershaft intermediate gear is connected with two grades of clutches.
6. the coasting control systems of electric vehicle according to claim 1, which is characterized in that the jackshaft with it is described defeated
Pass through gear drive between shaft, wherein
The speed changer further includes the jackshaft output gear being arranged on the jackshaft and is arranged on the output shaft
Final gear, the jackshaft output gear engages with the final gear.
7. the coasting control systems of electric vehicle according to claim 1, which is characterized in that the output section includes differential
Device, the differential mechanism are arranged on the output shaft.
8. a kind of electric vehicle slides control method, which is characterized in that the electric vehicle include first clutch, two grades from
Clutch, input shaft, jackshaft, output shaft and output section, wherein the input shaft is engaged with driving motor to transmit the drive
Power caused by motor is moved, the power on the input shaft is transmitted to by the first clutch or two grades of clutches
On the jackshaft, passed through with the power by jackshaft transmission power to the output shaft, the output shaft described defeated
Go out portion and be transferred to wheel, wherein the described method comprises the following steps：
The status information of the electric vehicle is acquired by entire car controller, and is generated according to the status information of the electric vehicle
Slide driving instruction；
By gearbox controller receive it is described slide driving instruction when, control the first clutch and it is described two grades from
Clutch disengages, so that the output shaft drives the output section and the jackshaft to rotate with the wheel.
9. electric vehicle according to claim 8 slides control method, which is characterized in that the state of the electric vehicle
Information includes the depth of accelerator pedal, the output torque of the depth of the brake pedal, gear signal and the driving motor.
10. electric vehicle according to claim 9 slides control method, which is characterized in that pass through the full-vehicle control
Device is not operated in the accelerator pedal and the brake pedal, the gear signal is D grades and the driving motor it is defeated
When to go out torque be zero, driving instruction is slided described in generation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810866930.3A CN108757917A (en) | 2018-08-01 | 2018-08-01 | The coasting control systems and method of electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810866930.3A CN108757917A (en) | 2018-08-01 | 2018-08-01 | The coasting control systems and method of electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108757917A true CN108757917A (en) | 2018-11-06 |
Family
ID=63968500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810866930.3A Pending CN108757917A (en) | 2018-08-01 | 2018-08-01 | The coasting control systems and method of electric vehicle |
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| CN (1) | CN108757917A (en) |
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| CN107472251A (en) * | 2017-08-08 | 2017-12-15 | 北京长城华冠汽车科技股份有限公司 | A kind of four-wheel driving electric vehicle slides control method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9109666B1 (en) * | 2014-05-09 | 2015-08-18 | Atieva, Inc. | Dual ratio constant mesh gearbox |
| CN105904964A (en) * | 2015-09-25 | 2016-08-31 | 北京长城华冠汽车科技股份有限公司 | Transmission device and control method for electric vehicle reduction gearbox |
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