WO2012077416A1 - 回生制御装置、ハイブリッド自動車および回生制御方法、並びにプログラム - Google Patents
回生制御装置、ハイブリッド自動車および回生制御方法、並びにプログラム Download PDFInfo
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- WO2012077416A1 WO2012077416A1 PCT/JP2011/074192 JP2011074192W WO2012077416A1 WO 2012077416 A1 WO2012077416 A1 WO 2012077416A1 JP 2011074192 W JP2011074192 W JP 2011074192W WO 2012077416 A1 WO2012077416 A1 WO 2012077416A1
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Definitions
- the present invention relates to a regeneration control device, a hybrid vehicle, a regeneration control method, and a program.
- the hybrid vehicle has an engine and an electric motor, and can be driven by the engine or the electric motor, or can be driven in cooperation with the engine and the electric motor, and regenerative power generation can be performed by the electric motor during deceleration.
- regenerative power generation When regenerative power generation is performed, regenerative torque is generated in the electric motor. This regenerative torque becomes friction in the running of the hybrid vehicle and becomes a braking force in the same manner as the engine brake (see, for example, Patent Document 1).
- the regenerative torque of the electric motor is proportional to the regenerative electric power of the electric motor. In other words, the greater the regenerative power of the motor, the greater the regenerative torque of the motor.
- the regenerative torque of the electric motor in the hybrid vehicle becomes a braking force in the same manner as the engine brake.
- the upper limit value of the regenerative power of the motor is appropriately adjusted according to the state of charge of the battery (hereinafter referred to as SOC (State of Charge)). For example, if the SOC is low, a large amount of electric power is required for charging the battery, so that the upper limit value of the regenerative electric power of the motor can be increased. Thus, when the upper limit value of the regenerative power is high, the electric motor can generate a large regenerative torque.
- the upper limit value of the regenerative power needs to be set lower than when the SOC is low.
- the electric motor cannot generate a large regenerative torque. Therefore, when the regenerative torque of the electric motor is used as the braking force of the hybrid vehicle, the braking force may be insufficient when the battery SOC is high compared to when the SOC is low. As a result, the braking force requested by the driver may not be satisfied, and the driver may feel that the braking force is insufficient, leading to a deterioration in drivability.
- the present invention was made under such a background, a regenerative control device, a hybrid vehicle, and a regenerative control method capable of improving the drivability when using the regenerative torque of the electric motor as a braking force,
- the purpose is to provide a program.
- the regenerative control device of the present invention includes an engine, an electric motor, and a battery that supplies electric power to the electric motor, and can be driven by the engine or the electric motor, or can be driven in cooperation with the engine and the electric motor, and at least decelerates.
- a value that represents the state of charge of the battery In a regenerative control device for a hybrid vehicle that is capable of regenerative power generation using an electric motor and that can use the regenerative torque generated by the regenerative power generation of the electric motor as a braking force during traveling by only the electric motor, a value that represents the state of charge of the battery
- first, second and third threshold values are provided, the second threshold value is greater than the first threshold value, the third threshold value is greater than or equal to the second threshold value, and the battery charge
- the traveling mode is based on the electric motor alone, the regenerative torque of the electric motor is used as the braking force, and the state of charge of the battery is the first.
- the driving mode is such that the engine and the electric motor cooperate with each other, and both the engine brake of the engine and the regenerative torque of the electric motor are used as the braking force, and the state of charge of the battery is less than or less than the first threshold value.
- the driving mode is a mode in which only the electric motor is used, and when the regenerative torque of the motor is used as a braking force, the driving mode in which the engine and the motor cooperate when the state of charge of the battery exceeds or exceeds the second threshold value.
- the battery is charged.
- Condition is when the third threshold above or beyond are those which have a control means for starting the restriction of the regenerative power generation.
- Another aspect of the present invention is a viewpoint as a hybrid vehicle.
- the hybrid vehicle of the present invention has the regeneration control device of the present invention.
- Still another aspect of the present invention is a viewpoint as a regeneration control method.
- the regenerative control method of the present invention includes an engine, an electric motor, and a battery that supplies electric power to the electric motor, and can be driven by the engine or the electric motor, or can be driven in cooperation with the engine and the electric motor, and is at least decelerated.
- the value represents the state of charge of the battery.
- first, second and third threshold values are provided, the second threshold value is greater than the first threshold value, the third threshold value is greater than or equal to the second threshold value, and the battery charge
- the traveling mode is based on the electric motor alone, the regenerative torque of the electric motor is used as the braking force, and the state of charge of the battery is the first.
- the driving mode is such that the engine and the electric motor work together, the engine brake of the engine and the regenerative torque of the electric motor are both used as braking force, and the state of charge of the battery is less than the first threshold value.
- the driving mode is based only on the electric motor and the regenerative torque of the electric motor is used as the braking force
- the engine and the electric motor cooperate when the state of charge of the battery exceeds or exceeds the second threshold value.
- the driving mode is a step of using both the engine brake of the engine and the regenerative torque of the electric motor as braking force, and when the state of charge of the battery exceeds or exceeds the first or second threshold, and the engine and the electric motor cooperate. It is a traveling mode that works, and both the engine brake of the engine and the regenerative torque of the motor are used as the braking force.
- the state of charge of the battery exceeds or third threshold value or more are those having the steps of starting the restriction of the regenerative power generation.
- Still another aspect of the present invention is a viewpoint as a program.
- the program of the present invention causes the information processing apparatus to realize the function of the regeneration control device of the present invention.
- drivability when using the regenerative torque of the electric motor as a braking force can be improved.
- FIG. 1 is a block diagram showing an example of the configuration of the hybrid vehicle 1.
- the hybrid vehicle 1 is an example of a vehicle.
- the hybrid vehicle 1 is driven by an engine (internal combustion engine) 10 and / or an electric motor 13 via a transmission of a semi-automatic transmission, and generates a braking force such as an engine brake of the engine 10 by regenerative torque of the electric motor 13 during deceleration. be able to.
- the semi-automatic transmission is a transmission that can automatically perform a shifting operation while having the same configuration as a manual transmission.
- the hybrid vehicle 1 includes an engine 10 and an engine ECU (Electronic Control Unit) 11, clutch 12, electric motor 13, inverter 14, battery 15, transmission 16, electric motor ECU 17, hybrid ECU 18, wheels 19, key switch 20, and shift unit 21.
- the transmission 16 has the above-described semi-automatic transmission and is operated by a shift unit 21 having a drive range (hereinafter referred to as a D (Drive) range).
- D Drive
- the shift unit 21 is in the D range, the shifting operation of the semi-automatic transmission is automated.
- the engine 10 is an example of an internal combustion engine, and is controlled by an engine ECU 11 to be gasoline, light oil, CNG (Compressed Natural Gas), LPG (Liquefied). Petroleum Gas) or alternative fuel or the like is combusted inside to generate power for rotating the shaft, and the generated power is transmitted to the clutch 12.
- ECU 11 gasoline, light oil, CNG (Compressed Natural Gas), LPG (Liquefied). Petroleum Gas) or alternative fuel or the like is combusted inside to generate power for rotating the shaft, and the generated power is transmitted to the clutch 12.
- the engine ECU 11 is a computer that operates in cooperation with the electric motor ECU 17 by following instructions from the hybrid ECU 18 and controls the engine 10 such as the fuel injection amount and valve timing.
- the engine ECU 11 includes a CPU (Central Processing Unit), an ASIC (Application Specific Integrated Circuit), microprocessor (microcomputer), DSP (Digital (Signal Processor) and the like, and has an arithmetic unit, a memory, an I / O (Input / Output) port, and the like.
- the clutch 12 is controlled by the hybrid ECU 18 and transmits the shaft output from the engine 10 to the wheels 19 via the electric motor 13 and the transmission 16. That is, the clutch 12 mechanically connects the rotating shaft of the engine 10 and the rotating shaft of the electric motor 13 under the control of the hybrid ECU 18 to transmit the shaft output of the engine 10 to the electric motor 13, or By disconnecting the mechanical connection between the rotating shaft of the motor 10 and the rotating shaft of the electric motor 13, the shaft of the engine 10 and the rotating shaft of the electric motor 13 can be rotated at different rotational speeds.
- the clutch 12 causes the hybrid vehicle 1 to travel by the power of the engine 10, thereby causing the electric motor 13 to generate electric power, when the engine 10 is assisted by the driving force of the electric motor 13, and to start the engine 10 by the electric motor 13.
- the rotating shaft of the engine 10 and the rotating shaft of the electric motor 13 are mechanically connected.
- the clutch 12 is in a state where the engine 10 is stopped or idling and the hybrid vehicle 1 is running by the driving force of the electric motor 13 and when the engine 10 is stopped or idling and the hybrid vehicle 1 is decelerated.
- the electric motor 13 is generating electric power (regenerating electric power)
- the mechanical connection between the rotating shaft of the engine 10 and the rotating shaft of the electric motor 13 is disconnected.
- the clutch 12 is different from the clutch that is operated by the driver operating the clutch pedal, and operates under the control of the hybrid ECU 18.
- the electric motor 13 is a so-called motor generator.
- the electric power supplied from the inverter 14 generates motive power for rotating the shaft, and supplies the shaft output to the transmission 16 or the shaft supplied from the transmission 16. Electric power is generated by the rotating power, and the electric power is supplied to the inverter 14.
- the electric motor 13 When the hybrid vehicle 1 is accelerating or traveling at a constant speed, the electric motor 13 generates power for rotating the shaft, and supplies the shaft output to the transmission 16.
- the hybrid vehicle 1 is driven in cooperation. Further, for example, when the electric motor 13 is driven by the engine 10, or when the hybrid vehicle 1 is decelerating or traveling downhill, the electric motor 13 operates as a generator.
- the state in which the electric motor 13 is generating power is a state in which the hybrid vehicle 1 is performing “regeneration to the battery 15”, and the electric motor 13 generates a regenerative torque corresponding to the regenerative power. To do.
- the inverter 14 is controlled by the electric motor ECU 17 and converts the DC voltage from the battery 15 into an AC voltage, or converts the AC voltage from the electric motor 13 into a DC voltage.
- the inverter 14 converts the DC voltage of the battery 15 into an AC voltage and supplies electric power to the electric motor 13.
- the inverter 14 converts the AC voltage from the electric motor 13 into a DC voltage. That is, in this case, the inverter 14 serves as a rectifier and a voltage regulator for supplying a DC voltage to the battery 15.
- the battery 15 is a chargeable / dischargeable secondary battery.
- the electric power is supplied to the electric motor 13 via the inverter 14 or when the electric motor 13 is generating electric power, It is charged by the power it generates.
- An appropriate SOC range is determined for the battery 15, and the SOC is managed so that the SOC does not fall outside the range.
- the transmission 16 has a semi-automatic transmission (not shown) that selects one of a plurality of gear ratios (speed ratios) in accordance with a speed change instruction signal from the hybrid ECU 18.
- the power and / or power of the electric motor 13 is transmitted to the wheel 19. Further, the transmission 16 transmits the power from the wheels 19 to the electric motor 13 when decelerating or traveling downhill.
- the driver can manually change the gear position to an arbitrary gear stage by operating the shift unit 21.
- the electric motor ECU 17 is a computer that operates in cooperation with the engine ECU 11 by following instructions from the hybrid ECU 18, and controls the electric motor 13 by controlling the inverter 14.
- the electric motor ECU 17 is configured by a CPU, an ASIC, a microprocessor (microcomputer), a DSP, and the like, and has an arithmetic unit, a memory, an I / O port, and the like.
- the hybrid ECU 18 is an example of a computer, and acquires accelerator opening information, brake operation information, vehicle speed information, gear position information acquired from the transmission 16, and engine rotation speed information acquired from the engine ECU 11 for hybrid traveling. With reference to this, the clutch 12 is controlled, and the transmission 16 is controlled by supplying a shift instruction signal. Further, the hybrid ECU 18 gives a control instruction for the electric motor 13 and the inverter 14 to the electric motor ECU 17 based on the obtained SOC information of the battery 15 and other information for hybrid driving, and gives a control instruction for the engine 10 to the engine ECU 11. give. These control instructions include a regenerative control instruction to be described later.
- the hybrid ECU 18 includes a CPU, an ASIC, a microprocessor (microcomputer), a DSP, and the like, and has an arithmetic unit, a memory, an I / O port, and the like.
- the program executed by the hybrid ECU 18 can be installed in advance in the hybrid ECU 18 that is a computer by storing the program in a nonvolatile memory inside the hybrid ECU 18 in advance.
- Engine ECU 11 electric motor ECU 17, and hybrid ECU 18 are CAN (Control Are connected to each other by a bus conforming to a standard such as Area Network.
- Wheel 19 is a driving wheel that transmits driving force to the road surface. Although only one wheel 19 is shown in FIG. 1, the hybrid vehicle 1 actually has a plurality of wheels 19.
- the key switch 20 is a switch that is turned on / off by a user, for example, when a key is started. When the key switch 20 is turned on, each part of the hybrid vehicle 1 is activated and the key switch 20 is turned off. Each part of the hybrid vehicle 1 is stopped by entering the state.
- the shift unit 21 gives an instruction from the driver to the semi-automatic transmission of the transmission 16, and when the shift unit 21 is in the D range, the shifting operation of the semi-automatic transmission is automated.
- FIG. 2 is a block diagram illustrating an example of a functional configuration realized in the hybrid ECU 18 that executes the program. That is, when the hybrid ECU 18 executes the program, the function of the regeneration control unit 30 is realized.
- the regenerative control unit 30 is a function that gives a regenerative control instruction (regenerative control instruction and illustration) to the engine ECU 11, the clutch 12, the inverter 14, and the electric motor ECU 17 based on the SOC information of the battery 15.
- step S1 the key switch 20 is in the ON state, the hybrid ECU 18 executes the program, and the function of the regenerative control unit 30 is realized in the hybrid ECU 18, and the procedure proceeds to step S1.
- step S1 the regeneration control unit 30 determines whether or not the SOC value of the battery 15 is less than the threshold value A. If it is determined in step S1 that it is less than the threshold A, the procedure proceeds to step S2. On the other hand, if it is determined in step S1 that the threshold value A is greater than or equal to the threshold value A, the procedure proceeds to step S4.
- step 2 the regeneration control unit 30 performs regeneration with the clutch 12 disengaged, and the procedure proceeds to step S3.
- step S3 the regeneration control unit 30 determines whether or not the SOC value of the battery 15 is equal to or greater than the threshold value B. If it is determined in step S3 that the threshold value B is equal to or greater than the threshold value B, the procedure proceeds to step S4. On the other hand, if it is determined in step S3 that it is less than the threshold value B, the procedure returns to step S2.
- step 4 the regeneration control unit 30 performs regeneration with the clutch 12 in the engaged state, and the procedure proceeds to step S5.
- step S5 the regeneration control unit 30 determines whether or not the SOC value of the battery 15 is greater than or equal to the threshold value C. If it is determined in step S5 that the threshold value C is not less than the threshold value C, the procedure proceeds to step S6. On the other hand, if it is determined in step S5 that it is less than the threshold value C, the procedure returns to step S1.
- step 6 the regeneration control unit 30 performs power limitation on the regenerative power of the motor 13 and ends the process for one cycle (END).
- FIG. 4 shows the relationship between the regenerative torque (regenerative electric power) and the SOC with threshold values A (first threshold value in the claims), B (second threshold value in the claims), and C (third value in the claims). It is a figure shown with (threshold), time is taken on a horizontal axis
- FIG. 5 is a diagram showing a process flow in the case of Yes in step S1 in the process of FIG.
- FIG. 6 is a diagram showing a process flow in the case of No in step S1 in the process of FIG.
- the threshold value A is 65% as the SOC value
- the threshold value B is 70% as the SOC value
- the threshold value C is 70% as the SOC value.
- the values of A, B, and C are not limited to these values, and various values can be set as long as the relationship of threshold A ⁇ threshold B ⁇ threshold C is satisfied.
- the regeneration control unit 30 first determines whether or not the SOC value is less than the threshold value A (step S1).
- the SOC is less than 65% (Yes in step S ⁇ b> 1), the battery 15 needs to be charged, and there is no need to limit the regenerative power. Since electric power can be increased and a large regenerative torque can be generated, regenerative operation is performed with the clutch 12 disengaged (step S2). Thereafter, the determination is based on the threshold B (step S3).
- step S3 when the SOC becomes 70% (threshold value B) or more (Yes in step S3), the charging of the battery 15 is almost completed, and the regeneration control unit 30 eventually narrows the regenerative power of the motor 13 and restricts the regenerative torque. Since there is a possibility that necessity arises, clutch regenerative regeneration is performed (step S4).
- threshold value B threshold value C
- regeneration control unit 30 performs clutch engagement regeneration in step S4 and simultaneously performs power limitation (Yes in step S5, step S6).
- step S4 the regeneration control unit 30 performs clutch contact regeneration.
- the SOC when the SOC is 65% (threshold A) or more and less than 70% (threshold C), clutch regenerative regeneration is performed without power limitation.
- the regeneration control unit 30 performs clutch engagement regeneration while limiting the power (step S6).
- FIG. 7 is a diagram showing the relationship among the SOC (upper stage), the clutch engagement / disengagement state (middle stage), and the deceleration (lower stage) in the regeneration control of the regeneration control unit 30 over time.
- the state before the start of power limitation is indicated by a solid line
- the state after the start of power limitation is indicated by a broken line.
- FIG. 8 is a flowchart illustrating the regeneration control process of the comparative example.
- FIG. 9 is a diagram illustrating the relationship among the SOC (upper stage), the clutch engagement / disengagement state (middle stage), and the deceleration (lower stage) in the regeneration control process of the comparative example as time elapses.
- the regeneration control unit 30 performs power limit on the regenerative power of the motor 13, so that the increase in SOC is almost stopped. To do.
- the regenerative control unit 30 engages the clutch 12 as the power limitation on the regenerative power of the electric motor 13 is performed.
- the braking force due to the regenerative torque of the electric motor 13 and the braking force due to the engine brake of the engine 10 work together, so that the necessary braking force can be ensured.
- FIG. 8 is a flowchart illustrating the regeneration control process of the comparative example.
- FIG. 9 is a diagram illustrating the relationship among the SOC, the clutch engagement / disengagement state, and the deceleration in the regenerative control of the comparative example over time.
- step S10 in the regeneration control of the comparative example, once it is determined that the clutch 12 is disengaged and the regeneration is performed (step S10), after that, if it is not less than the threshold (step S11). If yes, regeneration is performed in which power limitation is performed on the regenerative power of the motor 13 (step S12). If the power is less than the threshold (No in step S11), normal regeneration is performed (step S13).
- the SOC continues to rise, albeit more slowly, even after exceeding the power limit threshold. This is because regenerative torque is generated while the power is limited, and even a slight braking force is generated. Such control is not preferable because it may cause overcharging of the battery 15.
- the clutch remains disengaged, and as shown in the lower part of FIG. 9, the braking force that depends only on the regenerative torque of the motor 13 must be reduced.
- the engagement / disengagement of the clutch is determined at the threshold A.
- the threshold A For example, if the SOC is less than the threshold value A, the clutch is disengaged, and if it exceeds the threshold value B, the clutch shifts to the clutch engagement regeneration.
- threshold A ⁇ threshold B it is possible to prevent transition from clutch disengagement to clutch engagement regeneration in a short time. That is, a transition to clutch engagement regeneration during clutch disengagement may give a deceleration shock to the hybrid vehicle 1 and affect drivability.
- the threshold value B it is preferable to provide a certain margin as the threshold value B.
- the threshold value A which is the determination criterion for clutch engagement / disengagement
- the threshold value A ⁇ threshold value B is set in order to continue the clutch regeneration.
- the protection of the battery 15 is prioritized over the drivability and the clutch transition regeneration is performed.
- the threshold value C is satisfied. At this time, even if the regeneration is throttled, the deceleration force is maintained because the clutch is regenerative.
- the determination boundary value may be variously changed such that “above” is “exceeding” and “below” is “less than”.
- threshold A ⁇ threshold B threshold C
- threshold C threshold C
- the threshold A may be 60%
- the threshold B may be 65%
- the threshold C may be 70%.
- the SOC that shifts from clutch disengagement to clutch engagement regeneration is lower than in the above-described embodiment.
- the threshold A may be 65%
- the threshold B may be 70%
- the threshold C may be 80%.
- the engine 10 has been described as an internal combustion engine, it may be a heat engine including an external combustion engine.
- the program executed by the hybrid ECU 18 has been described as being installed in the hybrid ECU 18 in advance.
- a removable medium in which the program is recorded (a program is stored) is attached to a drive or the like (not shown), and the removable medium is removed.
- the program read from the medium is stored in a non-volatile memory inside the hybrid ECU 18 or the program transmitted via a wired or wireless transmission medium is received by a communication unit (not shown), and the hybrid ECU 18 Can be installed in the hybrid ECU 18 as a computer.
- each ECU may be realized by an ECU in which these are combined into one, or an ECU that further subdivides the functions of each ECU may be provided.
- the program executed by the computer may be a program that is processed in time series in the order described in this specification, or in parallel or at a necessary timing such as when a call is made. It may be a program for processing.
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Abstract
Description
Control Unit)11、クラッチ12、電動機13、インバータ14、バッテリ15、トランスミッション16、電動機ECU17、ハイブリッドECU18、車輪19、キースイッチ20、およびシフト部21を有して構成される。なお、トランスミッション16は、上述した半自動トランスミッションを有し、ドライブレンジ(以下では、D(Drive)レンジと記す)を有するシフト部21により操作される。シフト部21がDレンジにあるときには、半自動トランスミッションの変速操作が自動化される。
Petroleum Gas)、または代替燃料等を内部で燃焼させて、軸を回転させる動力を発生させ、発生した動力をクラッチ12に伝達する。
Specific Integrated Circuit)、マイクロプロセッサ(マイクロコンピュータ)、DSP(Digital
Signal Processor)などにより構成され、内部に、演算部、メモリ、およびI/O(Input/Output)ポートなどを有する。
Area Network)などの規格に準拠したバスなどにより相互に接続されている。
本実施の形態の効果を図7~図9を参照して説明する。図7は、回生制御部30の回生制御におけるSOC(上段)、クラッチの断接状態(中段)、および減速度(下段)の関係を時間の経過と共に示す図である。なお、図7は、電力制限開始以前の状態を実線で示し、電力制限開始以降の状態を破線で示す。図8は、比較例の回生制御の処理を示すフローチャートである。図9は、比較例の回生制御の処理におけるSOC(上段)、クラッチの断接状態(中段)、および減速度(下段)の関係を時間の経過と共に示す図である。
図3のフローチャートの説明において、「以上」は、「超える」とし、「以下」は、「未満」とするなど、判定の境界値については様々に変更してもよい。
Claims (4)
- エンジンと電動機と前記電動機に電力を供給するバッテリとを有し、前記エンジンもしくは前記電動機により走行可能であり、または前記エンジンと前記電動機とが協働して走行可能であり、少なくとも減速中に、前記電動機により回生発電が可能であると共に、前記電動機のみによる走行中に前記電動機の回生発電により生じる回生トルクを制動力として利用可能なハイブリッド自動車の回生制御装置において、
前記バッテリの充電状態を表す値に対し、第一、第二、第三の閾値が設けられ、前記第二の閾値は前記第一の閾値よりも大きい値であり、前記第三の閾値は前記第二の閾値以上の値であり、
前記バッテリの充電状態が前記第一の閾値未満または以下であるときには、前記電動機のみによる走行形態とし、前記電動機の回生トルクを制動力として利用し、前記バッテリの充電状態が前記第一の閾値以上または超えたときには、前記エンジンと前記電動機とが協働する走行形態とし、前記エンジンのエンジンブレーキと前記電動機の回生トルクとを共に制動力として利用し、
前記バッテリの充電状態が前記第一の閾値未満または以下であり、前記電動機のみによる走行形態とし、前記電動機の回生トルクを制動力として利用しているときに、前記バッテリの充電状態が前記第二の閾値以上または超えたときには、前記エンジンと前記電動機とが協働する走行形態とし、前記エンジンのエンジンブレーキと前記電動機の回生トルクとを共に制動力として利用し、
前記バッテリの充電状態が前記第一または前記第二の閾値以上または超えたときであり、前記エンジンと前記電動機とが協働する走行形態とし、前記エンジンのエンジンブレーキと前記電動機の回生トルクとを共に制動力として利用しているときに、前記バッテリの充電状態が前記第三の閾値以上または超えたときには、前記回生発電の電力の制限を開始する制御手段を有する、
ことを特徴とする回生制御装置。 - 請求項1記載の回生制御装置を有することを特徴とするハイブリッド自動車。
- エンジンと電動機と前記電動機に電力を供給するバッテリとを有し、前記エンジンもしくは前記電動機により走行可能であり、または前記エンジンと前記電動機とが協働して走行可能であり、少なくとも減速中に、前記電動機により回生発電が可能であると共に、前記電動機のみによる走行中に前記電動機の回生発電により生じる回生トルクを制動力として利用可能なハイブリッド自動車の回生制御方法において、
前記バッテリの充電状態を表す値に対し、第一、第二、第三の閾値が設けられ、前記第二の閾値は前記第一の閾値よりも大きい値であり、前記第三の閾値は前記第二の閾値以上の値であり、
前記バッテリの充電状態が前記第一の閾値未満または以下であるときには、前記電動機のみによる走行形態とし、前記電動機の回生トルクを制動力として利用し、前記バッテリの充電状態が前記第一の閾値以上または超えたときには、前記エンジンと前記電動機とが協働する走行形態とし、前記エンジンのエンジンブレーキと前記電動機の回生トルクとを共に制動力として利用するステップと、
前記バッテリの充電状態が前記第一の閾値未満または以下であり、前記電動機のみによる走行形態とし、前記電動機の回生トルクを制動力として利用しているときに、前記バッテリの充電状態が前記第二の閾値以上または超えたときには、前記エンジンと前記電動機とが協働する走行形態とし、前記エンジンのエンジンブレーキと前記電動機の回生トルクとを共に制動力として利用するステップと、
前記バッテリの充電状態が前記第一または前記第二の閾値以上または超えたときであり、前記エンジンと前記電動機とが協働する走行形態とし、前記エンジンのエンジンブレーキと前記電動機の回生トルクとを共に制動力として利用しているときに、前記バッテリの充電状態が前記第三の閾値以上または超えたときには、前記回生発電の電力の制限を開始するステップと、
を有する、
ことを特徴とする回生制御方法。 - 情報処理装置に、請求項1記載の回生制御装置の機能を実現させることを特徴とするプログラム。
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- 2011-10-20 AU AU2011339772A patent/AU2011339772A1/en not_active Abandoned
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US9139196B2 (en) | 2015-09-22 |
JP5079864B2 (ja) | 2012-11-21 |
CN103079926B (zh) | 2016-05-04 |
AU2011339772A1 (en) | 2013-05-02 |
JP2012121381A (ja) | 2012-06-28 |
CN103079926A (zh) | 2013-05-01 |
EP2650185A1 (en) | 2013-10-16 |
US20130173107A1 (en) | 2013-07-04 |
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