CN208376535U - Regenerative brake control system - Google Patents
Regenerative brake control system Download PDFInfo
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- CN208376535U CN208376535U CN201821086784.4U CN201821086784U CN208376535U CN 208376535 U CN208376535 U CN 208376535U CN 201821086784 U CN201821086784 U CN 201821086784U CN 208376535 U CN208376535 U CN 208376535U
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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
- Y02T10/72—Electric energy management in electromobility
Abstract
The utility model discloses a kind of regenerative brake control system, it include: top control module, motor module, battery module and energy consumption module, motor module is connected with top control module, battery module and energy consumption module respectively, on the one hand the electric energy of battery module is converted into kinetic energy to drive vehicle, on the other hand, it is battery module charging by regenerative braking, while extra regenerating braking energy is consumed or being converted by energy consumption module；Top control module acquires multiple signals and vehicle sensors feedback information in the motor module, battery module and energy consumption module, coordinates each module action.Above-mentioned regenerative brake control system, the signal of modules is acquired by top control module, and judge the battery pack SOC state in battery module, when the battery pack in battery module cannot recharge, control regenerating braking energy is consumed or is converted in energy consumption module, braking switching is reduced, and then solves the abnormal sense in handoff procedure, so as to improve braking ability when driving.
Description
Technical field
The utility model relates to a kind of regenerative brake control systems, belong to field of vehicle control.
Background technique
As the environmental consciousness of people is constantly reinforced, continuous attention to energy security and environmental protection problem, new energy
The use of the universal and related new technology of automobile becomes inexorable trend.Regenerative braking is also known as regenerative braking, is a kind of use in electricity
Braking technology on motor-car.The use of the regenerative braking of electric car increases electric vehicle course continuation mileage, improves energy benefit
With rate.
By the working principle of motor it is found that motor is both motor and generator, regenerative braking is this using motor
Vehicle energy and potential energy are converted to electric energy and are stored in battery in turn by characteristic.It is generated in the regenerative braking course of work
Brake force, be otherwise known as regenerative braking force.Electronic pedal is used in certain pure electric automobiles, throttle and brake integrative are (also single
Equipped with brake pedal), when driver unclamps gas pedal, system recycles kinetic energy, is slowed down using regenerative braking force, complete
It is equal to brake pedal when full release gas pedal, in case of emergency driver can directly step on brake by driving habit
Vehicle pedal carries out emergency braking.
In actual vehicle driving process, in order to protect battery not charged excessively, the SOC for sometimes making reference to battery (fills
Electricity condition: state of charge) and threshold value is set up, braking mode is terminated when being more than the threshold value of SOC, is switched to biography
System hydraulic braking mode, throttle unclamps brakeless power and generates at this time, and for automobile without deceleration, driver is easy to produce pedal sense exception,
Travel sense of discomfort.Especially in the operating condition of long descending section, charging process is likely to be breached SOC threshold, and braking mode is easy to switch, i.e.,
Make electric vehicle system that may sound an alarm regenerative braking termination, but driver experiences exception, or even unnecessary panic shape occurs
Condition.Also easily make battery pack impaired if regenerative braking conversion power is excessive, vehicle will be run and be had an impact, and reduce Full Vehicle System
Reliability.
In view of this, the present inventor studies this, a kind of regenerative brake control system is specially developed, this case is thus
It generates.
Utility model content
The purpose of the utility model is to provide a kind of regenerative brake control systems, solve after battery pack cannot continue charging
Regenerating braking energy consumption and transfer problem, the pedal generated when can reduce the pattern switching of regenerative braking and hydraulic braking it is different
Often sense improves driver drives vehicle experience and driving comfort.
To achieve the goals above, the solution of the utility model is:
Regenerative brake control system characterized by comprising top control module, motor module, battery module and energy consumption mould
Block, wherein the motor module is connected with top control module, battery module and energy consumption module respectively, on the one hand by battery pack mould
The electric energy of block is converted to kinetic energy to drive vehicle, is battery module charging by regenerative braking, while will be extra on the other hand
Regenerating braking energy is consumed or is converted by energy consumption module；Top control module acquires the motor module, battery module and energy consumption
Multiple signals and vehicle sensors feedback information in module, coordinate each module action.
The battery module includes driving battery pack, A-battery group, and the control driving battery pack, low tension
The battery management unit of pond group.
The motor module includes motor control module, conversion circuit and driving motor, the driving motor control
Module is connected with top control module, according to the signal of top control module control driving motor, the conversion circuit respectively with driving battery
Group, A-battery group, driving motor are connected with energy consumption module, are used for AC-DC conversion；The driving motor and wheel driving are
System is connected, and for converting electrical energy into mechanical energy, provides power for vehicle driving.
The top control module uses the vehicle ECU including regenerative braking capability.
The energy consumption module is one of energy consumption component, super capacitor, ESC actuator and EMB actuator or several groups
It closes.For consuming or converting extra regenerating braking energy.
Above-mentioned regenerative brake control system, the signal of modules is acquired by top control module, and judges battery module
In battery pack SOC state, when the battery pack in battery module cannot recharge, control regenerating braking energy in energy consumption mould
It is consumed or is converted in block, reduce braking switching, and then solve the abnormal sense in handoff procedure, braked so as to improve when driving
Performance.Meanwhile energy recovery efficiency is improved, it solves electric vehicle and keeps regenerative braking in the case where certain charge rate, driving
Dynamic battery pack cannot continue regenerating braking energy consumption or storage problem after charging, preferably drive a vehicle experience sense to driver.
The utility model is described in further detail below in conjunction with drawings and the specific embodiments.
Detailed description of the invention
Fig. 1 is a kind of regenerative brake control system structural schematic diagram；
Fig. 2 is another regenerative brake control system structural schematic diagram；
Fig. 3 is another regenerative brake control system structural schematic diagram；
Fig. 4 is another regenerative brake control system structural schematic diagram；
Fig. 5 is one of control flow chart of regenerative brake control system.
Specific embodiment
Fig. 1 is a kind of regenerative brake control system, comprising: top control module 1, motor module 2, battery module 3 and energy consumption
Module.The motor module 2 is connected with top control module 1, battery module 3 and energy consumption module respectively, on the one hand by battery pack mould
The electric energy of block 3 is converted to kinetic energy to drive vehicle, and on the other hand, the energy generated by regenerative braking is that battery module 3 fills
Electricity, while extra regenerating braking energy being consumed or being converted by energy consumption module；Top control module 1 acquires the motor module 2, electricity
Multiple signals and vehicle other each sensor feedback informations in pond group module 3 and energy consumption module, coordinate each module action.
Wherein, the battery module 3 includes driving battery pack 31, A-battery group 32, and the control driving electricity
The battery management unit 33 of pond group 31, A-battery group 32.The driving battery pack 31 passes through the conversion circuit 22 of motor module 2
For the power supply of driving motor 23, to provide power for vehicle, the A-battery group 32 is mainly the low-voltage equipment power supply of vehicle,
It can be to control the power supply of the low-voltage equipments such as screen, air-conditioning system in vehicle, preferably, being generally adopted as 12V battery pack.The battery
Administrative unit 33 is used to control the battery status of driving battery pack 31, A-battery group 32, and real-time assessment battery pack situation is simultaneously anti-
It feeds top control module 1, for judging vehicle course continuation mileage and whether needing to charge etc..Battery management unit 33 can generally use
BMS battery management system.
The motor module 2 includes motor control module 21, conversion circuit 22 and driving motor 23, the driving electricity
Machine control module 21 is connected with top control module 1, controls driving motor 23, the conversion circuit 22 according to the signal of top control module 1
It is connected respectively with driving battery pack 31, A-battery group 32, driving motor 23 and energy consumption module, conversion circuit 22 is used for vehicle electrical
Road conversion will drive the DC voltage of battery pack 31 to be converted to alternating voltage and use for driving motor 23, and regenerative braking is driving
When battery pack 31, A-battery group 32 charge, direct current is converted alternating current to for AC-DC conversion；The driving motor 23
It is connected with wheel drive system, for converting electrical energy into mechanical energy, provides power for vehicle driving.Preferably, the driving
Motor 23 is connected with the differential mechanism 7 of wheel drive system, the fast device of wheel drive system difference, and adjustable two sides vehicle wheel rotational speed is poor,
Improve running car handling.
The top control module 1 is for acquiring each signal, comprising: accelerator opening amount signal；The DC voltage value of conversion circuit
Signal, consumption current value signals IConsume electric current, current signal；The real-time vehicle fed back by the wheel speed sensors 4 being mounted on wheel 5
Fast signal；Each real-time SOC signal of rotor-position, torque signal and battery management unit 31 that driving motor 23 exports.
Top control module 1 is fed back by live signal and vehicle condition, is judged operator brake intention, is adjusted and cooperate between each module,
So that regenerating braking energy is persistently consumed or is converted, store, reduce the switching of braking mode and hydraulic braking mode, improves
Regenerative braking efficiency.Top control module 1 is communicated by bus with other each modules, can generally be used with regenerative braking capability
Vehicle ECU.The vehicle ECU of the regenerative braking capability, i.e. finished vehicle electronic control unit, the various signals of acquisition process, operation
The program of itself storage simultaneously carries out information exchange realization predetermined control function with each executing agency.
The energy consumption module is energy consumption component 6, and for consuming the energy of regenerative braking generation, energy consumption component 6 generally all may be used
To use high-power energy consumption resistance, the high-power energy consumption resistance can carry the resistance element of large energy, have preferable
Heat-sinking capability.The energy that regenerative braking generates directly can be become heat by energy consumption component 6, be dissipated in around component, and regeneration is reduced
The pedal generated when braking mode and hydraulic braking pattern switching is felt extremely, improves driver drives vehicle experience and driving comfort.
Fig. 2 is another regenerative brake control system, and the energy consumption module is super capacitor 8, when driving 32 He of battery pack
In the case where the neither rechargeable of low-voltage battery group 33, regenerative braking electric energy will charge to super capacitor 8.Due to capacitor
This body structure is simple, and storing electricity is more, can bear the transient high-current of regenerative braking generation, realizes quick charge, electric discharge.?
Driving motor 23 during startup, is first discharged by super capacitor 8 and generates larger current, using 23 quick start of driving motor,
Then switch driving battery pack 32 again to power, maintain electric energy needed for keeping driving motor group 32 to provide.
Fig. 3 is another regenerative brake control system, when electric vehicle contains ESC (electronic stabilizing control system
Electronic Stability Control) system when, as shown in figure 3, ESC actuator 9 can be used in the energy consumption module.When
In the case where driving battery pack 32 and the neither rechargeable of low-voltage battery group 33, regenerative braking electric energy is disappeared by ESC actuator 9
Consumption, ESC actuator 9 actively increase brake fluid pressure, realize and increase the purpose that brake force reduces speed.
Fig. 4 is another regenerative brake control system, when electric vehicle is EMB (electromechanical braking system
Electronic Stability Control) system when, as shown in figure 4, the energy consumption module can be EMB actuator 10.
In the case where driving battery pack 32 and the neither rechargeable of low-voltage battery group 33, regenerative braking electric energy will be by EMB actuator
10 consumption, 10 motor of EMB actuator rotate energy consumption, increase brake force between friction plate and brake disc, can reduce the purpose of speed.
Above-mentioned regenerative brake control system, the signal of modules is acquired by top control module 1, and judges battery module
Battery pack SOC state in 3 controls regenerating braking energy in energy consumption when the battery pack in battery module 3 cannot recharge
It is consumed or is converted in module, reduce braking switching, and then solve the abnormal sense in handoff procedure, so as to improve the when system of driving
Dynamic performance.Meanwhile energy recovery efficiency is improved, it solves electric vehicle and keeps regenerative braking in the case where certain charge rate,
Driving battery pack cannot continue regenerating braking energy consumption or storage problem after charging, experience of preferably driving a vehicle to driver
Sense.
Fig. 5 is a kind of control flow chart of regenerative brake control system, as shown in figure 5, the regenerative brake control system
Control flow is as follows:
S201 first determines whether the state of gas pedal, if gas pedal is not unclamped, vehicle is in drive mode；
S202, when detecting that gas pedal is unclamped, the SOC minimum value of assessment driving battery pack will drive battery pack SOC
Minimum value is compared with the real-time SOC value of driving battery pack, if SOCIt drives≤SOCDrive min, S203 is thened follow the steps, otherwise, is executed
Step S204；
Regenerative braking charge power is compared, if P by S203 with driving battery maximum charge powerRegeneration≤PDrive charging max,
The electric energy that then regenerative braking generates charges to driving battery pack 32, otherwise, executes step S204；
S204, if SOCIt drives> SOCDrive minOr SOCIt drives≤SOCDrive min, and PRegeneration> PDrive charging max；Then assess A-battery group
SOC minimum value；If SOCLow pressure≤SOCLow pressure min, S205 is thened follow the steps, otherwise, executes step 206；
S205, regenerative braking charge power is compared with A-battery group maximum charge power, if PRegeneration≤PLow charging max,
The electric energy that then regenerative braking generates charges to A-battery group；Otherwise, step 206 is executed；
Step 206, if SOCLow pressure> SOCLow pressure minOr SOCLow pressure≤SOCLow pressure min, and PRegeneration> PLow charging max, then pass through energy consumption
The electric energy that module consumption or conversion regenerative braking generate.
S207, top control module 1 in real time predict driver's driving intention and calculate reality by acquisition 4 feedback signal of wheel speed sensors
When target braking force FTargetAnd expected vehicle velocity VIt is expected that, while the brake force, the real-time speed that generate with regenerative braking compare judgement
Whether meet the requirements: if FRegenerative braking force≥FTarget, S208 is thened follow the steps, conversely, if regenerative braking force is insufficient, it can be by brake apparatus
Supplement pressurization is carried out to regenerative braking force, increases brake force, realizes that electric vehicle slows down until reaching target vehicle speed；
S208, if VVehicle≤VIt is expected that, then terminate, conversely, if VVehicleIt is unsatisfactory for requiring, then returns to step S202, recycle above-mentioned step
Rapid S202-208, until terminating.
The utility model protection is by hardware knots such as top control module 1, motor module 2, battery module 3 and energy consumption modules
The regenerative brake control system of structure composition, can be used in the prior art in control flow by the control function that software section is realized
Conventional vehicle control software realization.
The product form and style of above-described embodiment and schema and non-limiting the utility model, any technical field
The appropriate changes or modifications that those of ordinary skill does it all should be regarded as the patent category for not departing from the utility model.
Claims (5)
1. regenerative brake control system characterized by comprising top control module, motor module, battery module and energy consumption mould
Block, wherein the motor module is connected with top control module, battery module and energy consumption module respectively, on the one hand by battery pack mould
The electric energy of block is converted to kinetic energy to drive vehicle, is battery module charging by regenerative braking, while will be extra on the other hand
Regenerating braking energy is consumed or is converted by energy consumption module；Top control module acquires the motor module, battery module and energy consumption
Multiple signals and vehicle sensors feedback information in module, coordinate each module action.
2. regenerative brake control system as described in claim 1, it is characterised in that: the battery module includes driving battery
Group, A-battery group, and the battery management unit of the control driving battery pack, A-battery group.
3. regenerative brake control system as described in claim 1, it is characterised in that: the motor module includes driving motor control
Module, conversion circuit and driving motor, the motor control module are connected with top control module, according to the signal of top control module
Driving motor is controlled, the conversion circuit is connected with driving battery pack, A-battery group, driving motor and energy consumption module respectively,
For AC-DC conversion；The driving motor is connected with wheel drive system, is vehicle row for converting electrical energy into mechanical energy
Offer power is provided.
4. regenerative brake control system as described in claim 1, it is characterised in that: the top control module, which uses, has regenerative braking
The vehicle ECU of function.
5. regenerative brake control system as described in claim 1, it is characterised in that: the energy consumption module is energy consumption component, super
One of capacitor, ESC actuator and EMB actuator or Several combinations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821086784.4U CN208376535U (en) | 2018-07-10 | 2018-07-10 | Regenerative brake control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821086784.4U CN208376535U (en) | 2018-07-10 | 2018-07-10 | Regenerative brake control system |
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| CN208376535U true CN208376535U (en) | 2019-01-15 |
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| CN201821086784.4U Active CN208376535U (en) | 2018-07-10 | 2018-07-10 | Regenerative brake control system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108944466A (en) * | 2018-07-10 | 2018-12-07 | 浙江力邦合信智能制动系统股份有限公司 | Regenerating brake control method and system |
| CN111823872A (en) * | 2020-07-10 | 2020-10-27 | 的卢技术有限公司 | Braking energy utilization method of four-wheel independent driving system of electric vehicle |
| CN112549975A (en) * | 2020-12-22 | 2021-03-26 | 一汽解放汽车有限公司 | Driving control method for long downhill of electric automobile, electric automobile and storage medium |
-
2018
- 2018-07-10 CN CN201821086784.4U patent/CN208376535U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108944466A (en) * | 2018-07-10 | 2018-12-07 | 浙江力邦合信智能制动系统股份有限公司 | Regenerating brake control method and system |
| CN111823872A (en) * | 2020-07-10 | 2020-10-27 | 的卢技术有限公司 | Braking energy utilization method of four-wheel independent driving system of electric vehicle |
| CN112549975A (en) * | 2020-12-22 | 2021-03-26 | 一汽解放汽车有限公司 | Driving control method for long downhill of electric automobile, electric automobile and storage medium |
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