CN1244464C - Regenerating controller for electric vehicle - Google Patents
Regenerating controller for electric vehicle Download PDFInfo
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- CN1244464C CN1244464C CNB021606420A CN02160642A CN1244464C CN 1244464 C CN1244464 C CN 1244464C CN B021606420 A CNB021606420 A CN B021606420A CN 02160642 A CN02160642 A CN 02160642A CN 1244464 C CN1244464 C CN 1244464C
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- regeneration
- brake operation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
- B62M6/40—Rider propelled cycles with auxiliary electric motor
- B62M6/45—Control or actuating devices therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/20—Electric propulsion with power supplied within the vehicle using propulsion power generated by humans or animals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/53—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells in combination with an external power supply, e.g. from overhead contact lines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L7/00—Electrodynamic brake systems for vehicles in general
- B60L7/10—Dynamic electric regenerative braking
- B60L7/18—Controlling the braking effect
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
- B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio
- B62M11/14—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears
- B62M11/145—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio with planetary gears built in, or adjacent to, the bottom bracket
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M6/00—Rider propulsion of wheeled vehicles with additional source of power, e.g. combustion engine or electric motor
- B62M6/40—Rider propelled cycles with auxiliary electric motor
- B62M6/55—Rider propelled cycles with auxiliary electric motor power-driven at crank shafts parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/12—Bikes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Regulating Braking Force (AREA)
Abstract
The invention effectively collects energy without waste, using a regenerative action in traveling with frequent stops and starts, such as in urban area traveling. A regenerative control device for an electric motor vehicle is provided with a brake for braking the vehicle with the strength corresponding to the brake operated amount. A brake switch 51 outputs the brake signal, corresponding to the brake operating amount. The device is provided with a switching means for switching a motor to the regenerative side, in response to the brake operation decided by the brake signal. The operating amount variation detection part 53 outputs the brake operating amount variation. A regenerative duty map 52 decides a regenerative amount (regenerative duty) according to the variation. The regenerative duty map 52 can be composed so as to output the regenerative amount, as a function between the variation of the brake operating amount and the vehicle speed. Especially, the larger the variation of the brake operated amount is, the larger the regenerative amount is.
Description
Invention field
The present invention relates to the regenerating control device of elec. vehicle,, battery is carried out the regenerating control device of electrically-charged elec. vehicle with the electric power of its generation particularly with brake operation or to satisfy predetermined condition serve as to trigger to regenerate.
Background technology
In elec. vehicle (comprise carry out manpower electronic auxiliary vehicle), regenerate when descent run or during inertia traveling etc., electric power with its generation charges to battery, and the discharge of controlling battery afterwards is to realize prolonging operating range by once charging.For example, open flat 5-75086 communique and disclosed with being operating as of brake lever and trigger the bicycle that has auxiliary drive of regenerating in that Japan is real.In addition, the operation that has disclosed output, BK Brake Switch and hand switch from car speed sensor in TOHKEMY 2001-30974 communique obtains the electrically assisted bicycle of the triggering of regeneration control.
In the regeneration control of in the past elec. vehicle, determine that according to the brake operation speed of a motor vehicle constantly the regeneration amount is common, with brake operation speed, whether be that emergency braking is irrelevant promptly, can produce certain regeneration amount.Thereby irrelevant with the emergency requirement of braking, the deceleration sense of the vehicle of regenerative brake is roughly certain.
In addition, even brake operation speed is identical, also wish to improve the braking force that produces by low-tach regeneration especially for the car speed of this moment.In addition, for the user obtains the comfortable sensation of travelling when the descending, hope is not only according to the output of BK Brake Switch, and carries out regenerative brake according to being suitable for down-hill setting.
Summary of the invention
The present invention proposes in view of the above problems, and its purpose is, a kind of regenerating control device that can change the elec. vehicle of the deceleration sense that is produced by regeneration by the emergency of brake operation is provided.In addition, the object of the present invention is to provide a kind ofly when descending, can make the user obtain the regenerating control device of elec. vehicle of the comfortable sensation of travelling by regeneration.
In order to realize only stating purpose, the invention is characterized in, BK Brake Switch with the brake signal that can export expression brake operation amount, the operation of the brake gear that response is judged according to described brake signal and described motor is switched to the shifter of regeneration side determines that according to the variable quantity of brake operation amount of judging based on described brake signal or brake operation amount the regeneration amount of regeneration amount determines device.According to this feature, according to the validity of brake operation amount or brake operation amount variable quantity change regenerative brake.
In addition, the present invention is except above-mentioned feature, and the feature that also has is respectively to be provided with the regeneration amount that constitutes and to determine device as following (a)～(f).
(a) according to the cell pressure and the speed of a motor vehicle, with being defined as the above-mentioned regeneration amount of coefficient of correction correction that cell pressure is high more, the regeneration amount is more little with the electrically-charged battery of regenerative current.(b) constitute in mode as the function output regeneration amount of the variable quantity of brake operation amount or brake operation amount and the speed of a motor vehicle.(c) the big more mode of big more, the determined regeneration amount of variable quantity with brake operation amount or brake operation amount constitutes.(d) with compare with the high-speed domain of the speed of a motor vehicle, the regeneration amount constitutes with respect to the mode that differs greatly of the variable quantity size of brake operation amount or brake operation amount in the low speed territory.(e) constitute with respect to the mode of the difference of the variable quantity size of brake operation amount or brake operation amount in the high-speed domain of the speed of a motor vehicle, to reduce the regeneration amount gradually.(f) with when being judged as vehicle at descent run, no matter have or not brake operation, the mode of all exporting predetermined regeneration amount constitutes.
In addition, the invention is characterized in that according to the cell pressure and the speed of a motor vehicle, cell pressure is high more, the regeneration amount is defined as more little, and, according to the brake operation amount of judging based on brake signal or the above-mentioned regeneration amount of variable quantity correction of brake operation amount.
According to these features, owing to for example can set the regeneration amount of the corresponding speed of a motor vehicle, so can carry out the regeneration of corresponding vehicular applications and characteristic.In addition, when the speed of a motor vehicle is low owing to can obtain bigger regeneration amount, thus as frequently repeat to stop and the travel conditions that starting, speed is difficult to become big under, can obtain big regeneration amount.In addition, even do not carry out brake operation, also can utilize regenerative brake cosily to travel and generate electricity at descending.In addition, may be controlled to according to cell pressure, i.e. the residual capacity of battery, residual capacity of battery is many more, and the regeneration amount is more little.
Description of drawings
Fig. 1 is the block diagram of main portion function of the regenerating control device of expression one embodiment of the invention.
Fig. 2 is the lateral plan of electric assisted bicycle.
Fig. 3 is the planar view with handgrip of BK Brake Switch.
Fig. 4 is that the B-B of Fig. 3 is to view.
Fig. 5 is the main portion section-drawing of electric assisting apparatus.
Fig. 6 is the section-drawing of the A-A position of Fig. 5.
Fig. 7 is the planar view of an example of expression source switch portion.
Fig. 8 is the figure that expression is used to illustrate the legpower hysteresis of assisting cut-off condition.
Fig. 9 is the figure that expression is used to illustrate the legpower hysteresis of assisting the beginning condition.
Figure 10 is that expression is used to illustrate the figure that the legpower of the auxiliary beginning establishment condition under a plurality of legpower level lags behind.
Figure 11 is the diagram of circuit (one) of the main portion of echo mode treatment.
Figure 12 is the diagram of circuit (its two) of the main portion of echo mode treatment.
Figure 13 is the accompanying drawing of an example that shows the regeneration rate of the corresponding brake operation amount variable quantity and the speed of a motor vehicle.
Figure 14 is the accompanying drawing of an example of the regeneration rate when being illustrated in legpower essence for the descent run of " 0 ".
Figure 15 is the diagram of circuit (one) of the regeneration control of the modified example during about descent run.
Figure 16 is the diagram of circuit (its two) of the regeneration control of the modified example during about descent run.
Figure 17 has been to use the block diagram of the regenerating control device of the motor that has brush.
Figure 18 is the accompanying drawing of an example of the regeneration rate of expression corresponding brake operation amount and the speed of a motor vehicle.
Figure 19 has block diagram function, the regenerating control device main portion of determining regeneration rate according to cell pressure.
Figure 20 is the figure of an example of expression secondary image.
Figure 21 is a diagram of circuit of having considered the regeneration control of the cell pressure and the speed of a motor vehicle.
The accompanying drawing of an example of Figure 22 reflection that to be expression constitute in the mode as the function of the cell pressure and speed of a motor vehicle output regeneration rate.
The specific embodiment
Below, one embodiment of the present of invention are described with reference to the accompanying drawings.Fig. 2 is the lateral plan as the Electrical Bicycle of the elec. vehicle of the regenerating control device with one embodiment of the invention.The vehicle frame 2 of Electrical Bicycle has the head pipe 21 that is positioned at car body the place ahead, from the beginning manages the following pipe 22 of 21 downward rear extensions and from managing near the seat pillar 23 that erects upward 22 the end down.Manage down 22 and the joint portion of seat pillar 23 and periphery thereof two detouchable resin covers 33 cover by being divided into up and down.Drive handgrip (below, only be called " handgrip ") 27 and be inserted in the top of head pipe 21 freely to rotate, the front fork 26 that links to each other with hand fulcrum 27A in the lower support of head pipe 21 by hand fulcrum 27A.Ground axle suspension free to rotate has front-wheel WF in the lower end of front fork 26.
Be hung with as containing the auxiliary electric assisting apparatus 1 of using the actuating device of electro-motor (aftermentioned) of legpower in the bottom of vehicle frame 2.Specifically, the connecting part 92 of managing 22 lower ends down, be arranged on welding etc. be fixed on seat pillar 23 the battery bracket rear portion connecting part 90 and be arranged on the anterior not shown connecting part of battery bracket (not shown) this three sentence bolt and be hung with electric assisting apparatus 1.At connecting part 90 electric assisting apparatus 1 and chain stay 25 are fixed together.
The source switch portion 29 of electric assisting apparatus 1 is arranged on down on the pipe 22 and head is managed near 21.Can select to suppress simultaneously the echo pattern (detailed content is referring to the description of back) of power consumption by key operated energized from this source switch portion 29.Power connection also can utilize the teleswitch that has for example used infrared signal to carry out.At this moment, be provided with the receiver of the infrared signal that reception sends from teleswitch in source switch portion 29.
Be provided with drive sprocket 13 at power supply auxiliary device 1, the rotation of bent axle 101 is passed on through chain 6 from drive sprocket 13 and is delivered to rearward sprocket 14.Be provided with brake lever 27B on handgrip 27, the operation of this brake lever 27B conveys to the brake gear (not shown) of trailing wheel WR through brake cable 39.In addition, be provided with BK Brake Switch (it is described to see the back for details) on brake lever 27B, this BK Brake Switch has stroke sensor, if operation brake lever 27B, the then brake signal of output its operational ton of expression (stroke).Detect the operational ton of operation brake lever 27B and brake lever 27B according to brake signal.
Bent axle 101 is supported on the electric assisting apparatus 1 free to rotately, at the two ends, the left and right sides of bent axle 101 through crank 11 sustain pedals 12.At the terminal room axle bearing of the pair of right and left chain stay 25 of extending rearward trailing wheel WR as drive wheel from electric assisting apparatus 1.Be provided with the seat strut 24 of pair of right and left at the terminal room of the top of seat pillar 23 and two chain stay 25.For the height of adjustable bed rearrangement position 30, the seat tubes 31 that has seat 30 has been installed slidably in seat pillar 23 upper ends.
Below seat 30, the rear portion of seat pillar 23 is equipped with battery 4.Battery 4 is contained in the housing case, is installed in seat pillar 23 through battery bracket.Battery 4 comprises a plurality of battery units, and roughly vertically to be provided with along seat pillar 23.
Fig. 3 is the planar view with handgrip of BK Brake Switch, and Fig. 4 is that the B-B of Fig. 3 is to view.Among two figure, brake lever 27B utilize lever bracket frame 27C be supported on handgrip handle 27D near.Lever bracket frame 27C is divided into two fabricate block to the car body fore-and-aft direction, forwardly divide 27CF to be provided with pivot 27E, and brake lever 27B is provided with respect to this pivot 27E free to rotately.Forwardly divide 27CF to contain BK Brake Switch 51.BK Brake Switch 51 is the stroke sensors that change resistance value according to the displacement of guiding valve, and the front end of guiding valve 51A links with the longitudinal component that forms at brake lever 27B front end.
If brake lever 27B is drawn (that is, brake operation) to handgrip handle 27D direction, then guiding valve 51A is outstanding from BK Brake Switch 51 main bodys, if brake lever 27B is separated with handgrip handle 27D, then guiding valve 51A pushes in the main body of BK Brake Switch 51.Thereby, be provided for detecting the circuit of the resistance value (brake signal) of the BK Brake Switch 51 by guiding valve 51A motion change, according to the output of this circuit, can detect and have or not brake operation, operational ton (operational stroke).Operational ton is big more, and rate of braking is big more.In addition, below complicated for fear of explanation, the output that detects the circuit of above-mentioned resistance value is described as the same implication of output (brake signal) with BK Brake Switch 51.
Fig. 5 is the section-drawing of electric assisting apparatus 1, and Fig. 6 is that the A-A of Fig. 5 is to view.Left side cover 70L and right cover 70R that the housing of electric assisting apparatus 1 is installed in its two sides by main body 70, respectively constitute.For expendable weight, housing 70, left side cover 70L and right cover 70R be moulded resin products preferably.Around housing body 70, be formed with suspension rod 90a, 91a, the 92a that is suitable for above-mentioned connecting part 90,91,92 respectively.Be provided with bearing 71 in main body 70, cover 70R is provided with bearing 72 on the right side.In the inner ring of bearing 71, be connected to bent axle 101, in the inner ring of bearing 72, connect the sleeve pipe 73 that is provided with to its peripheral direction with bent axle 101 coaxial, relative bent axles 101 with being free to slide.That is, bent axle 101 is supported by bearing 71 and bearing 72.
Be fixed with wheel hub 74 at sleeve pipe 73, by the mono-directional overrun clutch 75 that for example ratchet device constitutes equipment gear 76 be set in the periphery of this wheel hub 74.Consider that from the angle of expendable weight equipment gear 76 preferably is formed from a resin, in addition, consider, preferably adopt helical wheel from viewpoints such as peace and quiet.
At the end of sleeve pipe 73 formative gear 73a, this gear 73a as sun wheel, is disposed three planetary wheels 77 in its periphery.Planetary wheel 77 is supported by the axle 77a that is arranged on supporting disk 102, and supporting disk 102 is supported by bent axle 101 through mono-directional overrun clutch 78.Planetary wheel 77 detects with ring 79 for legpower, with the internal gear engagement that forms in week within it.Pass through chain 6 fixedly connected drive sprockets 13 to above-mentioned back sprocket wheel 14 in the end of sleeve pipe 73 (side that does not have formative gear).
Legpower detects with ring 79 has arm 79a, the 79b that stretches out in its periphery, by be arranged on the extension spring 80 between arm 79a and the main body 70 and be arranged on arm 79b and the compression spring 81 of 70 of main bodys to bent axle 101, and direction of rotation direction (clockwise among the figure) pusher arm 79a, 79b when travelling.Compression spring 81 is provided with for the vibration of anti-stop ring 79.Be provided with the potentiometer 82 of the rotation direction that is used for detection ring 79 at arm 79b.
By spring washer 85 clutch-plate 86 of regeneration usefulness is provided with in abutting connection with equipment gear 76, is used to overcome spring washer and will coil 86 pressure disc 87 in abutting connection with configuration to equipment gear 76 thrusters pressure at clutch-plate 86.Clutch-plate 86 and pressure disc 87 all can axially be free to slide to it with respect to sleeve pipe 73.
Make pressure disc 87 deflection clutch-plates 86 by the cam 88 that contacts with the dip plane that forms at its hub portion.Cam 88 is fixed on the axle 89, and axle 89 is supported freely to rotate by right side cover 70R.The end of S. A. 89 promptly is useful on the actuator 7 that rotates S. A. 89 from right side cover 70R to the outstanding partial fixing in outside.Actuator 7 can be made of motor or spiral tube.In when brake, actuator 7 is energized according to the brake signal of BK Brake Switch 51.When actuator 7 response brake signals rotated, axle 89 rotated, and cam 88 rotates.
Be fixed on miniature gears 83 and above-mentioned equipment gear 76 engagements on the axle of motor M.Motor M is the three-phase brushless motor, its will by the rotor 111 of magnetic pole 110 with neodymium (Nd-Fe-B class) magnetite, be arranged on its periphery stator coil 112, be arranged on rubber magnet stone ring (the N utmost point and S dispose extremely alternately and form ring) 113 that the magnetic pole sensor of rotor 111 sides uses, constitute with the axle 116 of rubber magnet stone ring 113 arranged opposite, the hole IC115 that is installed in substrate 114 and rotor 111.Axle 116 is supported by bearing 98 that is arranged on left side cover 70L and the bearing 99 that is arranged on the housing 70.
Consider that from the viewpoint of expendable weight housing body 70 and cover 70L, 70R preferably are made of number fat finished product, on the other hand, need to improve the intensity that waits around the bearing.In the electric assisting apparatus 1 of present embodiment, metallo-strengthening parts 105,106,107 such as iron, aluminium, aluminum alloy, copper alloy are arranged in the fitted around of bearing.Particularly, because the strengthening part that is configured in housing 70 is the bearing 99 of the bearing 71 of strengthening bent axle 101, motor drive shaft 116 and the device of estimating the position that bearing load is bigger as suspension rod 90a, the 91a of installing component in the car body, 92a etc., therefore the strengthening part of each several part should be interconnected and form one brace panel 105.Utilize this brace panel 105, be configured in each bearing and suspension rod each strengthening part on every side and interconnect with further raising stiffening effect.
Brace panel 105 is not limited to all devices that link the strengthening part around bearings 71 and bearing 99 and suspension rod 90a, 91a, the 92a, also can be to link between the parts contiguous mutually in these strengthening parts, the for example strengthening part around strengthening part around the suspension rod 90a and the bearing 99, or the strengthening part around strengthening part around the bearing 71 and the bearing 99 or suspension rod 90a, 91a, 92a one.It is integrally formed when in addition, these strengthening parts 105,106,107 are preferably in resin forming by housing 70 and cover 70L, 70R.
In the electric assisting apparatus 1 of said structure, if apply legpower by 11 pairs of bent axles 101 of crank, then bent axle 101 rotates.The rotation of bent axle 101 conveys to mounted panel 102 by mono-directional overrun clutch 78, and the axle 77a of planetary wheel 77 is rotated around sun wheel 73a, by planetary wheel 77 sun wheel 73a is rotated.Rotate by sun wheel 73a, the drive sprocket 13 that is fixed on sleeve pipe 73 rotates.
If trailing wheel WR is applied load, then according to its size, above-mentioned legpower detects with ring 79 and rotates, and detects its amount of spin by potentiometer 82.In the output of potentiometer 82, be the output of load-responsive during greater than predetermined value, motor M energized and produce auxiliary force according to the size of its load.Auxiliary force is synthetic and convey to drive sprocket 13 with the driving torque that is produced by the manpower from bent axle 101 input.
In motion, when applying brake in order to make car retardation, BK Brake Switch 51 is connected (brake signal that output surpasses the judgment standard of brake operation), drives actuator 7 with turning cylinder 89, and pressure disc 87 is pushed clutch-plate 86.Then, clutch-plate 86 is partial to equipment gears 76 sides, and combines with wheel hub 74 and equipment gear 76, and the rotation of wheel hub 74 is passed to equipment gear 76.And the rotation of the drive sprocket 13 in the braking is passed to miniature gears 83 through sleeve pipe 73, wheel hub 74 and equipment gear 76.Rotate by miniature gears 83, produce the electro-motive force that causes by regeneration at stator coil 112.The electric current that regeneration produces offers battery 4 by controller 100, and battery 4 is charged.
In the present embodiment, when on smooth road, travelling etc., when satisfying the expectant control benchmark, carry out travelling of echo pattern.In the echo pattern, when having satisfied the expectant control benchmark,, on the other hand, when satisfying other expectant control benchmark, begin once more to assist by auxiliary, in addition, when connecting, BK Brake Switch 51 carries out refresh charging.The echo pattern can be selected by driver's operation.Fig. 7 is the planar view of 29 1 examples of expression source switch portion.
Among this figure, by inserting not shown key and rotate this key at key hole 32, can preference pattern.If key in the position of " OFF ", then cuts off the electric power of electric assisting apparatus 1, do not power to battery auxiliary device 1 from battery 4.To aim at the position of " ON ", then can provide electric energy to electric assisting apparatus 1 as if key, when legpower surpassed predetermined value, control motor M was so that provide auxiliary force according to auxiliary force that reads from predefined reflection and legpower than (auxiliary ratio).In addition,, then select " echo pattern ", as the back is described in detail, can begin to assist or end auxiliary control according to the expectant control benchmark if key alignment is arrived " ECO " position.The control of also regenerating of echo pattern.In addition, source switch portion 29 preferably is installed on the car body in the mode that the working direction of car body is pointed in " ON " position.
The following describes auxiliary, auxiliary the ending and regeneration control in the echo pattern.In the echo pattern, detect legpower and lag behind, when changing, implement auxiliary ending with lower than the predetermined value auxiliary level (below, be called " auxiliary cut-off level ") that need not judging legpower.
Fig. 8 is the figure that expression is used to illustrate the legpower hysteresis of assisting cut-off condition, and the Counter Value CNTBT of the counting machine that upgrades according to the legpower size is shown simultaneously.The rotation period of the corresponding bent axle of legpower and cyclical variation.Among this figure, legpower higher limit TRQUP and legpower lower limit TRQBT have been set.Legpower higher limit TRQUP for example is set in the scope of 15～20kgf, and legpower lower limit TRQBT for example is set in 13～15kgf scope.For example detect legpower every 10 milliseconds.
During less than legpower lower limit TRQBT, Counter Value CNTBT increases (+1) at legpower TRQA, and during greater than legpower higher limit TRQUP, Counter Value CNTBT reduces (1) at legpower TRQA.Legpower TRQA is during greater than legpower lower limit TRQBT and less than legpower higher limit TRQUP, and Counter Value CNTBT does not change.When this Counter Value CNTBT surpassed a reference value (auxiliary by the judgment standard value) TTED, legpower TRQA changed with auxiliary cut-off level and realizes auxiliary ending.
In addition, when legpower TRQA surpasses the reset level RESET be set at greater than legpower higher limit TRQUP or auxiliary beginning condition described later when setting up, Counter Value CNTBT can reset.
Below, the control that is used for auxiliary beginning in the above-mentioned echo pattern is described.The detection legpower lags behind, and is being judged as the legpower level when being the level that needs auxiliary force (below, be called " auxiliary level "), according to should level auxiliary more auxiliary than implementing.Fig. 9 is the figure that expression is used to illustrate the legpower hysteresis of assisting the beginning condition, has shown the Counter Value CNTASL that upgrades when legpower surpasses a reference value simultaneously.Among this figure, set a reference value TRQASL as the legpower level of the judgement key element of auxiliary beginning, the number of times that the peak value of the legpower TRQA that changes is surpassed this a reference value TRQASL is set the Counter Value CNTASL that begins counting machine as auxiliary.At this, constitute Counter Value CNTAL and reduce (1) at every turn when the peak value of legpower TRQA surpasses this a reference value TRQASL, Counter Value CNTASL becomes " 0 ", and legpower TRQA is when surpassing a reference value TRQASL, make the judgement that legpower is in the auxiliary level of requirement, auxiliary beginning condition is set up.
Particularly, Fig. 9 illustrates the example of the initial value of Counter Value CNTASL for " 3 ".In the figure, though the peak value at time t1, t2 legpower TRQA surpasses a reference value TRQASL, Counter Value CNTASL reduces secondary, because the peak value of next variable cycle is no more than a reference value TRQASL, so, Counter Value CNTASL is reset to initial value " 3 " at time t3.Afterwards, Counter Value CNTASL reduces and becomes " 0 " at time t4, t5, t6, and when time t7 legpower TRQA surpassed a reference value TRQASL, auxiliary beginning condition was set up and begun to assist.
Said reference value TRQASL can set a plurality of level, can set and the mutual different Counter Value CNTASL of other level by corresponding each level.Figure 10 has provided the figure that legpower lags behind, and it has illustrated the auxiliary beginning establishment condition of each a reference value when having set a plurality of a reference value TRQASL.In the figure, the legpower when a reference value TRQASL1 is equivalent to quicken gradually in travelling in smooth road for example is set at 20kgf, and a reference value TRQASL2 is equivalent in slow dip plane the legpower when up, for example is set at 30kgf.Legpower when a reference value TRQASL3 is equivalent to start, during anxious the upward slope or in travelling during brish acceleration for example is set at 35kgf.In addition, the Counter Value CNTASL1 of corresponding a reference value TRQASL1 is set at " 5 ", the Counter Value CNTASL2 of corresponding a reference value TRQASL2 is set at " 3 ", the Counter Value CNTASL3 of corresponding a reference value TRQASL3 is set at " 2 ".These settings can be set arbitrarily according to the characteristic (purposes, function etc.) and user's the hobby of vehicle.
In such setting, with reference to Figure 10, when in travelling in smooth road, quickening gradually, owing to be " 0 " at time t10 Counter Value CNTASL1, legpower TRQA surpasses a reference value TRQASL1, so begin to assist than (auxiliary ratio) with the legpower of corresponding a reference value TRQASL1.In addition, when slow dip plane is up, owing to be " 0 " at t11 Counter Value CNTASL2, and legpower TRQA surpasses a reference value TRQASL2, so switch to the assisting of auxiliary ratio of corresponding a reference value TRQASL2.In addition, in when starting, because the time t13 of t12 after the short time during from the starting beginning, Counter Value CNTASL3 be " 0 ", and legpower TRQA surpasses a reference value TRQASL3, so begins to assist with the auxiliary ratio of corresponding a reference value TRQASL3.Counter Value CNTASL1～CNTASL3 initialization when auxiliary stopping and during cpu reset.
Figure 11, Figure 12 are that expression contains the described diagram of circuit of assisting and assisting the main portion of the echo mode treatment of ending of Fig. 8, Fig. 9.In the step S1 of Figure 11, judge whether BK Brake Switch 51 is connected, be judged as at this and enter step S2 when negating, certainly the time, enter step S12 (Figure 12).Whether the output Vbr according to BK Brake Switch 51 (for example, 0.5V) judges whether BK Brake Switch 51 is connected greater than a reference value of connecting by judging.Detect legpower TRQA at step S2.Peak value at step S3 detection legpower TRQA when its peak value surpasses a reference value TRQASL, reduces Counter Value CNTASL.Whether is that " 0 " judges whether the legpower level becomes the auxiliary level of corresponding a reference value TRQASL at step S4 according to Counter Value CNTASL.Judge at step S5 whether legpower TRQA (currency) surpasses a reference value TRQASL.
For certainly the time, promptly legpower is a predetermined level at step S5, if current legpower TRQA surpasses a reference value TRQASL, then enters step S6 and assists allowing.In this is auxiliary, calculate auxiliary force according to the auxiliary ratio of obtaining by a reference value TRQASL and the speed of a motor vehicle of legpower, the output of control motor M is to obtain this auxiliary force.
In step S7, judge according to the magnitude relationship of legpower higher limit TRQUP and legpower lower limit TRQBT and legpower TRQA whether the legpower level is auxiliary cut-off level.According to the judged result of step S7, in step S8, increase Counter Value CNTBT auxiliary cut-off level+1 o'clock, in step S9, o'clock reduce Counter Value CNTBT at auxiliary cut-off level-1.When being " 0 ", auxiliary cut-off level enters step S10.In contrast, also can when assisting cut-off level, reduce Counter Value CNTBT, otherwise the mode of increase Counter Value CNTBT constitutes.
In step S10, whether become the auxiliary judgment standard value TTED of ending according to Counter Value CNTBT, judge that legpower TRQA whether with predetermined low level, promptly passes with auxiliary cut-off level.When assisting cut-off level, reduce in the structure of Counter Value CNTBT, whether a reference value TTED as initial value, is become " 0 " according to Counter Value CNTBT and judge whether to pass with auxiliary cut-off level.Pass with auxiliary cut-off level if be judged as legpower, then enter step S11, implement auxiliary ending.
In Figure 12, in step S12, detect output Vbr, vehicle velocity V and the legpower TRQA of BK Brake Switch 51.In step S13, whether poor (the variation delta Vbr of brake operation amount) that judge last brake operation amount Vbr-1 and current brake operation amount Vbr0 be greater than variable quantity a reference value (for example 1.5V), be judged as when sure at this, be that the variation of brake operation amount is when big, enter step S14, revise regeneration rate or object regeneration current value (during feedback) (aftermentioned) and the output of determining the regeneration amount.For example, make regeneration rate or the regenerative current value determined based on the speed of a motor vehicle be decided to be 1.1 times.In addition, below regeneration rate or object regeneration current value are generically and collectively referred to as regeneration rate.
On the other hand, in the variation of brake operation amount hour, enter step S15, carry out descending and judge.For example can whether be essentially " 0 " and the speed of a motor vehicle and judge whether descending greater than 10km per hour according to legpower.For certainly the time, enter step S16 at step S15, output is set at the regeneration rate that descending is used.Descending is set at the value that diminishes greatly with speed of a motor vehicle change with regeneration rate.
In addition, when negating, i.e. the variation of brake operation amount is judged as when not being descending less than a reference value, enters step S17 at step S15, the regeneration rate during common brake operation that output is determined according to the speed of a motor vehicle.Utilization is carried out regenerative brake according to the regeneration of above-mentioned regeneration rate.In addition, the concrete example of the regeneration rate of each condition of explanation correspondence later on.
In step S18, judge whether BK Brake Switch 51 is connected, execution in step S12～S17 and continue to carry out regenerative brake during BK Brake Switch 51 is connected.When BK Brake Switch is closed, enter step S19, stop regenerative brake.
Figure 13 is the figure of an example of regeneration rate of the corresponding vehicle velocity V of expression.In the figure, the variation delta Vbr according to vehicle velocity V and brake operation amount sets regeneration rate.At this, variation delta Vbr be little, in, big three phases, also can set carefullyyer.
As shown in the figure, regeneration rate along with the speed of a motor vehicle increases and becomes big, but is in the middling speed territory of 10～20km in vehicle velocity V in the low speed territory of vehicle velocity V less than 10km per hour, along with the speed of a motor vehicle increases and diminishes.In addition, surpass the almost not variation of high-speed domain of 20km in vehicle velocity V.In addition, in high-speed domain, littler than middling speed territory for the regeneration rate variable quantity of the variable quantity of brake operation amount.To the low speed territory,,, utilize regeneration to charge to battery efficiently from the middling speed territory as under the motoring condition that stop frequency is bigger travelling on the street in city owing to increase regeneration rate.Particularly, set regeneration rate big more because the variable quantity of brake operation amount is big more, thus can stop vehicle in the short time, and can increase the charge volume of regeneration.
The accompanying drawing of an example of the regeneration rate when Figure 14 is an expression legpower essence for the descent run of " 0 ".When legpower essence is zero, as shown in the figure, vehicle velocity V greater than the middling speed territory of 10km per hour to high-speed domain, regeneration rate increases and reduces along with vehicle velocity V.The variable quantity of the brake operation amount of Figure 13 is equivalent to the little almost moderate value that neutralizes.
Modified example when the following describes descent run.Figure 15, Figure 16 are the diagram of circuits of the rotation control of modified example.In this modified example, whether connect irrespectively with BK Brake Switch and to carry out regenerative brake when the descent run.In the above-mentioned example, when BK Brake Switch is connected, the actuator 7 that is used to switch to regeneration is energized, but in this modified example, irrespectively carry out regenerative brake with the on/off of BK Brake Switch 51, when satisfying the described speed of a motor vehicle in back and legpower condition, actuator 7 is energized, switch to regeneration.
Among Figure 15, in step S21, judge whether BK Brake Switch 51 is connected, when BK Brake Switch 51 is connected, enter step S22 and detect legpower TRQA.Judge whether to be descending at step S23.When descending, enter step S24, the regeneration rate when the output legpower is essentially zero.Like this, carry out regenerative brake.In step S25, also judge whether to be descending.Descent run continue during, step S25 turns back to step S24 and continues regenerative brake for certainly.When being judged as of descent run negates, enter step S26 and stop regenerative brake.
Be judged as when not being descent run, promptly step S23 for negate or at step S25 for negating, rotate control when stopping, entering step S27.Because step S27～step S35 is identical with step S3～step S11 of Figure 11, so do not explain.
In addition, when BK Brake Switch 51 access failures, step S21 is judged as certainly, enters step S36 (Figure 16).In step S36, detect output Vbr, vehicle velocity V and the legpower TRQA of BK Brake Switch 51.Whether the variation delta Vbr that judges the brake operation amount at step S37 greater than variable quantity a reference value (for example 1.5V), is judged as when sure at this, when promptly the variable quantity of brake operation amount is big, enters step S38, revises also output regeneration rate.For example, making the regeneration rate of determining according to the speed of a motor vehicle is 1.1 times.
Under the less situation of the variable quantity of brake operation amount, enter step S39, the regeneration rate during common brake operation that output is determined according to the speed of a motor vehicle.Utilize the regeneration of corresponding above-mentioned regeneration rate to carry out regenerative brake.
In step S40, judge whether BK Brake Switch 51 is connected, BK Brake Switch 51 connect during execution in step S36～S39 and continue to carry out regenerative brake.BK Brake Switch for by the time enter step S41, regenerative brake is stopped.
Fig. 1 is the block diagram of main portion structure in the expression controller 100.In addition, this function can utilize the microcomputer that contains CPU to realize.Among this figure, the output data of car speed sensor 40 (vehicle velocity V) will be input to be input to break period of regulation driving ratio reflection (auxiliary force reflection) 41 and regeneration rate reflection (refresh charging reflection) 52. that auxiliary force videos 41 as the output data (legpower TRQA) of the potentiometer 82 of pedaling force sensor respectively, legpower judging part 43, the second legpower judging part 50 and peak value judging part 46.
Set auxiliary force reflection 41 can obtain best auxiliary force data of assisting ratio according to vehicle velocity V and legpower TRQA output.For example under the situation of same legpower TRQA, set the auxiliary force reflection so that vehicle velocity V is big more, auxiliary force is more little, promptly auxiliary than diminishing.
In addition, with the output of BK Brake Switch 51, promptly represent the brake signal of brake operation amount to be input to operational ton variable quantity test section 53.It is poor that operational ton variable quantity test section 53 calculates the current and previous output of BK Brake Switch 51, detects the variation delta Vbr of brake operation amount.Variation delta Vbr is input to regeneration rate reflection 52.
Set regeneration rate reflection 52,, export the regeneration rate (regeneration control signal) that can obtain best regeneration output according to vehicle velocity V and variation delta Vbr so that when BK Brake Switch 51 is connected.The concrete example of regeneration rate reflection 52 illustrates at Figure 13.In addition, in the regeneration rate reflection 52, can set the reflection of the correction (multiply by the value of coefficient) when having considered that variation delta Vbr is greater than the variable quantity a reference value in the lump.
In addition, will be input to regeneration counting rate meter (refresh charging table) 54 with the vehicle velocity V of car speed sensor 40 detections and the legpower TRQA that detects with pedaling force sensor 82.Refresh charging table 54 is essentially zero at legpower TRQA, vehicle velocity V is used when being higher than the middling speed territory.The concrete example of refresh charging table 54 illustrates at Figure 14.In addition, refresh charging table 54 also can only use when brake operation, can be how on earth situation is irrespectively used with brake operation also.
Auxiliary force data and regeneration control signal are input to driving/regenerative drive 42, and driving/regenerative drive 42 is according to these auxiliary force data or regeneration control signal control motor M.In addition, car speed sensor 40 for example can be arranged on the regular concavo-convex of mounted panel 102 peripheries in the electric assisting apparatus 1 by electromagnetic detection, and detects device formation of data or assay intervals output vehicle velocity V according to it.
Peak value test section 46 provides legpower TRQA from pedaling force sensor 82, the peak value of the legpower TRQA that sense cycle changes.Peak value is imported legpower electrical level judging portion 47, when judging that in legpower electrical level judging portion 47 peak values surpass predetermined legpower level TRQASL, upgrade the Counter Value CNTASL of auxiliary beginning counting machine 48.Auxiliary beginning counting machine 48 is at the Counter Value CNTASL auxiliary permission indication of output AI during for predetermined value.Auxiliary permission indication AI is input to above-mentioned driving/regenerative drive 42 through door G.
Output detection signal when the second legpower judging part 50 surpasses legpower level TRQASL at current legpower TRQA.Door G opens when being provided the detection signal of the second legpower judging part 50, and auxiliary permission indication AI is input to driving/regenerative drive 42.Herein, peak value test section 46, legpower electrical level judging portion 47 and auxiliary beginning counting machine 48 have constituted legpower change level detection device.
Driving/regenerative drive 42 is energized to motor M according to auxiliary permission indication AI, produces the propulsive effort of corresponding auxiliary force data and the propulsive effort of service vehicle.In addition, according to regeneration indication ACI regeneration control motor M, so that produce the regeneration amount of corresponding regeneration control signal.That is, according to above-mentioned auxiliary force data or regeneration control signal, ratio or the conduction angle of the FET of the drive circuit of definite formation motor M, control auxiliary force or regeneration size.In addition, the output reset signal reset to initial value with the Counter Value with auxiliary counter 48 when legpower electrical level judging portion 47 did not surpass legpower level TRQASL at peak value.
In the foregoing description,, the invention is not restricted to use the vehicle of brushless motor, also be applicable to motor with brush though adopted brushless motor as motor M hypothesis.Figure 17 has been to use the block diagram of the regenerating control device of the motor that has brush.Among Figure 17, regenerating control device has to drive with controller 55 uses controller 56 with regenerating.Through relay 57 be connected the control power supply that by battery 4 obtain with regeneration with controller 56 with controller 55 in driving.In addition, in order to provide electric current to the motor 60 that has brush, and with regenerative current to battery charge, battery 4 is linked to each other with controller 56 with regenerating with driving with controller 55.Drive with controller 55 and be connected with motor 60 through relay 58,59 with controller 56 with regeneration.In addition, utilize the connection/pick-off signal of BK Brake Switch 51 to control each relay 57,58,59.
When BK Brake Switch 51 was connected, promptly when having carried out brake operation, relay 57,58,59 switched to regeneration controller 56 sides.On the other hand, when BK Brake Switch 51 was ended, when promptly not carrying out brake operation, relay 57,58,59 switched to and drives with controller 55 sides.
Drive the FET551 that has control usefulness with controller 55, utilize the conducting control of this FET551, control offers the electric current of motor 60.On the other hand, regeneration by controlling the rate at intermittence of this FET561, can obtain boosting to the regenerative voltage of desirable value with the FET561 that controller 56 has control usefulness.
In the present embodiment,, also can determine regeneration rate based on the brake operation amount and the speed of a motor vehicle though determined regeneration rate according to the variable quantity and the speed of a motor vehicle of brake operation amount.At this moment, so that roughly the brake operation amount is big more, the mode that regeneration rate is big is more controlled.Figure 18 is the accompanying drawing of an example of the regeneration rate of expression corresponding brake operation amount and the speed of a motor vehicle.As shown in the drawing, control in the big mode of the corresponding brake operation quantitative change of regeneration rate, particularly (approximately per hour 3～14km), form bigger regeneration rate from low speed territory to middling speed territory in vehicle velocity V.
The foregoing description can be in order to determining that with the charge condition of battery 4 mode of regeneration rate changes.Can know the charge condition of battery 4, promptly residual capacity is not fixing always.Perhaps residual capacity is not almost or be near full electrically-charged state.For example, under near full electrically-charged state, do not need to utilize regeneration to charge, and in residual capacity after a little while, preferably utilize regeneration actively to charge.Therefore, in residual capacity, when residual capacity is less than specified value, should consider to utilize regeneration to charge according to battery 4.For example, open the regenerating control device that carries out regenerative brake when disclosing cell pressure in the flat 11-227668 communique the spy less than specified value.
But according to the control setup in the record of above-mentioned communique, battery voltage value reduces and when being lower than specified value, owing to carry out regenerative brake rapidly, travels so may influence smoothly.Therefore, the regeneration amount is slowly changed.
Below among Shuo Ming the embodiment,, in residual capacity for a long time, the regeneration amount is reduced, in residual capacity after a little while, the regeneration amount is increased, consider that simultaneously the speed of a motor vehicle determines regeneration rate according to the residual capacity of battery 4.Like this, can utilize residual capacity of battery to prevent that the regeneration amount from changing rapidly, and can obtain suitable regenerative brake amount, so can realize motoring condition smoothly easily according to the travel conditions of vehicle.In addition, specifically judge the residual capacity of battery 4 by voltage (cell pressure) between the lead-out terminal of battery 4.
Figure 19 has the block diagram of regenerating control device main portion of determining the function of regeneration rate according to cell pressure, and the label identical with Fig. 1 represented identical or equal part.Among Figure 19, be provided with battery voltage detection portion 61, detect the terminal voltage VB of battery 4.Make the cell pressure VB of detection be input to regeneration rate reflection 52.In regeneration rate reflection 52, be provided with the reflection (as main reflection for example can use shown in Figure 13 reflection) of setting as the function output regeneration rate of above-mentioned brake operation amount Vbr or brake operation amount variation delta Vbr and vehicle velocity V.In addition, be provided with secondary image in regeneration rate reflection 52, it can export the coefficient of correction that is used to revise the regeneration rate of determining with above-mentioned main reflection.Secondary image offers cell pressure VB, as the function output coefficient of correction of this cell pressure VB and vehicle velocity V.This coefficient of correction and the regeneration rate that is obtained by main reflection are multiplied each other.
Figure 20 is the accompanying drawing of an example of expression secondary image.Set cell pressure, set the speed of a motor vehicle, set coefficient of correction at the x of this figure axle at the z axle at the y axle.As shown in the figure, reflection is set at corresponding cell pressure VB, when cell pressure VB is high, and promptly approaching more full charging, coefficient of correction is more little, and regeneration rate is diminished.In the present embodiment, adopt the battery of 24 volts of rated voltages.
Figure 21 is the control flow chart of having considered cell pressure VB and vehicle velocity V, the step S12～S19 that replaces Figure 12.That is, when the step S1 of Figure 11 is sure, carry out Figure 21.In step S21, detect BK Brake Switch output voltage V br, cell pressure VB and vehicle velocity V.In step S22, poor Δ Vbr or output voltage V br and the vehicle velocity V of output voltage V br during according to previous operation and this output voltage V br use main reflection to calculate regeneration rate.
In step S23,, use secondary image to calculate coefficient of correction according to cell pressure VB and vehicle velocity V.In step S24, regeneration rate and coefficient of correction are multiplied each other revise regeneration rate.In step S25, the regeneration rate of revising is exported to driving/regenerative drive 42.As a result, use this regeneration rate to carry out regenerative brake.Judge at step S26 whether BK Brake Switch 51 is connected, execution in step S21～S25 is to continue to carry out regenerative brake during BK Brake Switch 51 is connected.When BK Brake Switch is ended, enter step S27, regenerative brake is stopped.
In addition, can be not yet with the parameter of cell pressure VB as the coefficient of correction that calculates regeneration rate, but with cell pressure VB as the direct parameter of definite regeneration rate.That is, reflection is constituted as the function of cell pressure VB and vehicle velocity V output regeneration rate.Like this, can carry out regenerative brake according to the regeneration rate directly related with cell pressure VB and vehicle velocity V.The accompanying drawing of an example of Figure 22 reflection that to be expression constitute in the mode as the function of cell pressure VB and vehicle velocity V output regeneration rate.
In addition,, calculate coefficient of correction, use this coefficient of correction, can revise regeneration rate by the reflection acquisition of Figure 22 as the function of braking output voltage V br or the output voltage variation delta Vbr and the speed of a motor vehicle with above-mentioned opposite.
In above-described embodiment, illustrated it has been loaded in CD-ROM drive motor on the Electrical Bicycle as the regenerating control device of object, but the invention is not restricted to this, be applicable to do not apply legpower only with the electric-powered elec. vehicle that travels, can control the regeneration amount according to the variable quantity and the cell pressure of brake operation amount.As long as constitute by this way: promptly respond brake operation and switch to regeneration, according to variable quantity or the speed of a motor vehicle and the definite regeneration amount at this moment of cell pressure of the speed of a motor vehicle and brake operation amount or brake operation amount.
As can learning from the above description,, change the validity of regenerative brake according to the brake operation amount according to the 1st～the 8th invention.Particularly, in the 2nd～6th invention, the corresponding speed of a motor vehicle is controlled, can obtain bigger regeneration amount when the low speed.Therefore, travel in the street etc., brake operation is frequent, is being easy under the motoring condition of emergency brake operation, apply big regenerative brake power, and the electric current that can utilize regeneration to obtain is guaranteed battery is charged.In addition, according to the 7th invention, even owing to when descending, do not carry out brake operation, also can utilize regenerative brake and can cosily travel and, battery is charged.
In addition, the invention according to the 3rd and the 8th according to the residual capacity of utilizing the electrically-charged battery of regenerative brake, at battery remaining power for a long time, can obtain little regeneration amount.Therefore since at battery when completely charging, must carry out the refresh charging amount hardly, at battery remaining power more after a little while, carry out refresh charging with bigger regeneration amount, thereby can carry out refresh charging efficiently, can also prevent to overcharge and extending battery life simultaneously.In addition, can also prevent the energy leakage that useless charging causes.
In addition, owing to be to be different to carry out refresh charging during less than specified amount at battery remaining power and obtain corresponding to the regeneration amount of residual capacity,, thereby can obtain the good sensation of travelling so the variation of regenerative brake power is slow.
Claims (8)
1. the regenerating control device of an elec. vehicle, it has the motor of powered vehicle, and the brake gear so that the intensity of corresponding brake operation amount is braked vehicle is characterized in that having:
BK Brake Switch, it is used to export the brake signal of expression brake operation amount;
Shifter, its response switches to the regeneration side according to the operation of the brake gear of described brake signal judgement with described motor;
The regeneration amount is determined device, and it determines the regeneration amount according to the brake operation amount of judging based on described brake signal or the variable quantity of brake operation amount.
2. the regenerating control device of elec. vehicle as claimed in claim 1 is characterized in that:
Also has vehicle speed detector device;
Described regeneration amount determines that device constitutes in the mode as the function output regeneration amount of the variable quantity of brake operation amount or brake operation amount and the speed of a motor vehicle.
3. the regenerating control device of elec. vehicle as claimed in claim 2 is characterized in that:
Also has the voltage check device that the cell pressure by the electrically-charged battery of regenerative current is detected;
Described regeneration amount determines that device has correcting device, and it is according to the described cell pressure and the speed of a motor vehicle, to be defined as the described regeneration amount of coefficient of correction correction that cell pressure is high more, the regeneration amount is more little.
4. the regenerating control device of elec. vehicle as claimed in claim 1 is characterized in that:
Described regeneration amount determines that device constitutes in the big more mode of big more, the determined regeneration amount of variable quantity of brake operation amount or brake operation amount.
5. the regenerating control device of elec. vehicle as claimed in claim 4 is characterized in that:
Described regeneration amount is determined device, with compare with the high-speed domain of the speed of a motor vehicle, the mode that differs greatly with respect to the variable quantity size of brake operation amount or brake operation amount in the low speed territory constitutes.
6. the regenerating control device of elec. vehicle as claimed in claim 4 is characterized in that:
Described regeneration amount is determined device, constitutes with respect to the mode of the difference of the variable quantity size of brake operation amount or brake operation amount to reduce the regeneration amount gradually in the high-speed domain of the speed of a motor vehicle.
7. the regenerating control device of elec. vehicle as claimed in claim 1 is characterized in that:
Have vehicle speed detector device and differentiate vehicle whether at the discriminating gear of descent run;
When differentiating for descent run, no matter have or not brake operation, described regeneration amount determines that device is all as the function output regeneration amount of the speed of a motor vehicle.
8. the regenerating control device of an elec. vehicle, it has the motor of powered vehicle and the brake gear of vehicle being braked with the intensity of corresponding brake operation amount, it is characterized in that having:
BK Brake Switch, it is used to export the brake signal of expression brake operation amount;
Shifter, its response switches to the regeneration side according to the operation of the brake gear of described brake signal judgement with described motor;
Voltage check device, it is used to detect the cell pressure with the electrically-charged battery of regenerative current;
Determine device with the regeneration amount, it is used for according to the described cell pressure and the speed of a motor vehicle regeneration amount being defined as, and cell pressure is high more, the regeneration amount is more little;
Described regeneration amount is determined device, have corresponding brake operation amount of judging based on described brake signal or brake operation amount variable quantity, revise the correcting device of described regeneration amount.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001337825 | 2001-11-02 | ||
| JP337825/2001 | 2001-11-02 | ||
| JP394860/2001 | 2001-12-26 | ||
| JP2001394860A JP3882993B2 (en) | 2001-11-02 | 2001-12-26 | Regenerative control device for electric vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1421333A CN1421333A (en) | 2003-06-04 |
| CN1244464C true CN1244464C (en) | 2006-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021606420A Expired - Fee Related CN1244464C (en) | 2001-11-02 | 2002-11-01 | Regenerating controller for electric vehicle |
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| Country | Link |
|---|---|
| JP (1) | JP3882993B2 (en) |
| CN (1) | CN1244464C (en) |
| DE (1) | DE10250645B4 (en) |
| NL (1) | NL1021786C2 (en) |
| TW (1) | TW590949B (en) |
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-
2001
- 2001-12-26 JP JP2001394860A patent/JP3882993B2/en not_active Expired - Lifetime
-
2002
- 2002-10-25 TW TW091125017A patent/TW590949B/en not_active IP Right Cessation
- 2002-10-30 NL NL1021786A patent/NL1021786C2/en not_active IP Right Cessation
- 2002-10-30 DE DE10250645.0A patent/DE10250645B4/en not_active Expired - Fee Related
- 2002-11-01 CN CNB021606420A patent/CN1244464C/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9573569B2 (en) | 2009-10-05 | 2017-02-21 | Taiyo Yuden Co., Ltd. | Regenerative brake device and motor-assisted vehicle provided with the same |
Also Published As
| Publication number | Publication date |
|---|---|
| NL1021786A1 (en) | 2003-05-07 |
| DE10250645A1 (en) | 2003-07-24 |
| NL1021786C2 (en) | 2005-02-08 |
| TW590949B (en) | 2004-06-11 |
| DE10250645B4 (en) | 2017-08-24 |
| CN1421333A (en) | 2003-06-04 |
| JP3882993B2 (en) | 2007-02-21 |
| JP2003204602A (en) | 2003-07-18 |
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