WO2023210440A1 - 電動車制御装置 - Google Patents
電動車制御装置 Download PDFInfo
- Publication number
- WO2023210440A1 WO2023210440A1 PCT/JP2023/015462 JP2023015462W WO2023210440A1 WO 2023210440 A1 WO2023210440 A1 WO 2023210440A1 JP 2023015462 W JP2023015462 W JP 2023015462W WO 2023210440 A1 WO2023210440 A1 WO 2023210440A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- torque
- motor
- rate
- electric vehicle
- accelerator opening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Images
Classifications
-
- 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
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
-
- 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
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
- B60L15/2009—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for braking
-
- 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
-
- 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
- B60L7/14—Dynamic electric regenerative braking for vehicles propelled by AC motors
-
- 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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/421—Speed
-
- 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
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/423—Torque
-
- 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
- B60L2250/00—Driver interactions
- B60L2250/26—Driver interactions by pedal actuation
-
- 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
- B60L2250/00—Driver interactions
- B60L2250/26—Driver interactions by pedal actuation
- B60L2250/28—Accelerator pedal thresholds
-
- 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
Definitions
- the present disclosure relates to an electric vehicle control device that controls an electric vehicle using a motor as a drive source.
- the electric vehicle In an electric vehicle that uses a motor as a drive source, the electric vehicle is driven by causing the motor to generate power running torque, and the battery is charged by causing the motor to generate regenerative torque (for example, see Patent Documents 1 and 2). .
- the driver decreases the accelerator opening when he wants to slowly accelerate the electric vehicle, and increases the accelerator opening when he wants to accelerate the electric vehicle quickly. Conceivable.
- the torque rate of the command torque for controlling the motor is constant (see, for example, Patent Document 1). Therefore, in the power running state, the driver's intention based on the above-mentioned accelerator operation cannot be sufficiently reflected.
- the motor in a regenerative state in which the motor generates regenerative torque, if the torque rate is the same as in the powering state, the electric vehicle decelerates too sensitively, making it difficult for the driver to match the target deceleration.
- the motor has the characteristics of low rotation high torque and high rotation low torque, in which the torque is relatively high at low rotation and the torque is relatively low at high rotation. Therefore, in the regenerative state, if the motor rotates at a low speed, a sudden deceleration that is not intended by the driver may occur, causing the driver to accelerate again or causing the load to collapse.
- Patent Document 2 changes the torque rate depending on whether the target torque is increasing, but does not change the torque rate based on the accelerator opening, so the above-mentioned problem cannot be solved. It's not something that can be solved.
- an object of the present disclosure is to provide an electric vehicle control device that can appropriately reflect the driver's intention regarding acceleration and deceleration of the electric vehicle in accordance with the driver's operations.
- the electric vehicle control device of the present disclosure is as follows.
- An electric vehicle control device that controls acceleration and deceleration of an electric vehicle using a motor as a drive source, which includes an accelerator opening detection section that detects the accelerator opening of the electric vehicle, and a motor rotation detecting section that detects the motor rotation speed. and a motor control unit that controls the motor, and the motor control unit calculates a target torque based on the accelerator opening degree and the motor rotation speed, and calculates the target torque based on the accelerator opening degree for a unit time.
- An electric vehicle control device that calculates a torque rate that is an amount of change in torque per hit, and controls the motor so that the torque of the motor reaches the target torque at the torque rate.
- the torque rate can be changed based on the accelerator opening degree, which is the driver's operation, so the driver's intention regarding acceleration and deceleration of the electric vehicle in accordance with the driver's operation can be appropriately reflected.
- the torque rate can be changed in consideration of the influence of running resistance, etc., which varies depending on the vehicle speed. Thereby, for example, a good driving feeling can be given to the driver in each vehicle speed range.
- the motor control unit further includes a current torque detection unit that detects the current torque generated by the motor, and in a power running state where the target torque is larger than the current torque, the motor control unit controls the accelerator opening to a threshold value.
- a current torque detection unit that detects the current torque generated by the motor, and in a power running state where the target torque is larger than the current torque, the motor control unit controls the accelerator opening to a threshold value.
- the torque rate when the accelerator opening is less than the threshold opening is made smaller than the torque rate when the accelerator opening is above the threshold opening.
- the torque rate becomes small, so it is possible to reflect the driver's intention to slowly accelerate the electric vehicle.
- the accelerator opening is large, the torque rate becomes large, which can reflect the driver's desire to accelerate the electric vehicle immediately.
- the motor control unit sets the torque rate when the current torque is less than the threshold torque, and the torque rate when the current torque exceeds the threshold torque.
- the electric vehicle control device according to [3], wherein the torque rate is lower than the torque rate.
- the torque rate when the current torque is less than the threshold torque is made smaller than the torque rate when the current torque exceeds the threshold torque.
- FIG. 1 is a block configuration diagram showing an electric vehicle control device according to an embodiment. It is a graph showing an example of the relationship between accelerator opening, motor rotation speed, and motor torque.
- FIG. 3 is a diagram corresponding to FIG. 2 for explaining torque rates in each state. 3 is a flowchart illustrating an example of processing operations of the electric vehicle control device.
- FIG. 1 is a block configuration diagram showing an electric vehicle control device 1 according to an embodiment.
- an electric vehicle control device 1 according to the present embodiment is mounted on an electric vehicle 2 that uses a motor 3 as a drive source, and controls acceleration and deceleration of the electric vehicle 2.
- Examples of the electric vehicle 2 include a hybrid vehicle (HEV), a plug-in hybrid vehicle (PHEV), a fuel cell vehicle (FCEV), and an electric vehicle (BEV). Battery Electric Vehicle), etc.
- the electric vehicle control device 1 controls the motor 3 to control acceleration and deceleration of the electric vehicle 2.
- the motor 3 is a motor generator (motor generator) that functions as an electric motor or a generator.
- the motor 3 functions as an electric motor to drive the electric vehicle 2 by generating powering torque, which is positive torque.
- the motor 3 functions as a generator and charges a battery (not shown) by generating regenerative torque that is negative torque.
- the electric vehicle control device 1 includes an accelerator opening detection section 4, a motor rotation speed detection section 5, a current torque detection section 6, and a motor control section 7.
- the accelerator opening detection unit 4 detects the accelerator opening of the electric vehicle 2, which is the amount of operation by the driver.
- the accelerator opening detection section 4 for example, an accelerator opening sensor that detects the accelerator opening of an accelerator pedal can be used.
- the accelerator opening detection section 4 transmits a detection signal of the detected accelerator opening to the motor control section 7 .
- the motor rotation speed detection unit 5 detects the motor rotation speed, which is the rotation speed of the motor 3.
- the motor rotation speed detection section 5 for example, a rotation speed sensor such as a rotary encoder that detects the rotation speed of the motor 3 can be used.
- the motor rotation speed and the vehicle speed of the electric vehicle 2 are in a proportional relationship. Therefore, the motor rotation speed can be converted into the vehicle speed of the electric vehicle 2.
- the motor rotation speed detection section 5 transmits a detection signal of the detected motor rotation speed to the motor control section 7.
- the current torque detection unit 6 detects the current torque that is the torque generated by the motor 3.
- a torque sensor that detects the torque of the motor 3, etc. can be used.
- the current torque detection section 6 transmits a detection signal of the detected current torque to the motor control section 7.
- the motor control unit 7 is, for example, an electronic control unit (ECU) that includes a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like.
- the motor control unit 7 executes various controls by, for example, loading a program stored in a ROM into a RAM and executing it with a CPU.
- the motor control section 7 may be composed of a single electronic control unit or a plurality of electronic control units.
- the motor control unit 7 acquires the accelerator opening detected by the accelerator opening detection unit 4, the motor rotation speed detected by the motor rotation speed detection unit 5, and the current torque detected by the current torque detection unit 6. The motor control unit 7 then controls the motor 3 based on the acquired accelerator opening, motor rotation speed, and current torque. Control of the motor 3 includes power running control in which the motor 3 generates a power running torque that is a positive torque, and regeneration control that causes the motor 3 to generate a regenerative torque that is a negative torque.
- the motor control unit 7 determines the target torque to be generated by the motor 3 based on the accelerator opening degree and the motor rotation speed.
- FIG. 2 is a graph showing an example of the relationship between accelerator opening, motor rotation speed, and motor torque.
- the vertical axis shows the torque of the motor
- the vertical axis shows the motor rotation speed.
- torque on the positive side of zero indicates torque on the positive side, that is, power running torque
- torque on the negative side of zero indicates torque on the negative side, that is, regenerative torque.
- the outputtable torque of the motor 3 is determined according to the motor rotation speed.
- the motor control unit 7 determines the target torque based on the accelerator opening degree and the motor rotation speed within the outputtable torque range corresponding to the motor rotation speed. For example, the motor control unit 7 determines the target torque based on the accelerator opening degree and the motor rotational speed by referring to a table (governor table) in which the accelerator opening degree, the motor rotational speed, and the target torque are associated with each other. You may also ask for
- the governor table may be, for example, a table in which target torques corresponding to each motor rotation speed and each accelerator opening are expressed in a two-dimensional matrix, with the motor rotation speed as the horizontal axis and the accelerator opening as the vertical axis. .
- the target torque is larger than the current torque
- the target torque is smaller than the current torque
- the motor control unit 7 determines the torque rate (Nm/sec), which is the amount of change in torque per unit time, based on the accelerator opening. In other words, the motor control unit 7 changes the torque rate based on the accelerator opening degree.
- the torque rate is not a fixed value but a variable value that is changed based on the accelerator opening.
- the torque rate increases, the amount of change in torque per unit time increases, so in power running control, the amount of increase in torque per unit time increases, and in regeneration control, the amount of decrease in torque per unit time increases. growing.
- the torque rate decreases, the amount of change in torque per unit time becomes smaller, so in power running control, the amount of increase in torque per unit time becomes smaller, and in regeneration control, the amount of torque change per unit time decreases. The amount becomes smaller.
- the torque rate in the power running state is referred to as a torque increase rate.
- the torque increase rate is the amount of increase in torque per unit time.
- regeneration control is performed to reduce the torque of the motor 3, so the torque rate in the regeneration state is referred to as a torque reduction rate.
- the torque reduction rate is the amount of reduction in torque per unit time.
- the motor control unit 7 determines (changes) the torque increase rate based on the accelerator opening and the motor rotation speed. Specifically, the motor control unit 7 makes the torque increase rate when the accelerator opening is less than the threshold opening smaller than the torque increasing rate when the accelerator opening exceeds the threshold opening. In other words, the motor control unit 7 makes the torque increase rate when the accelerator opening is less than the threshold opening smaller than the torque increasing rate when the accelerator opening exceeds the threshold opening under the same motor rotation speed condition. . The motor control unit 7 also determines (changes) the torque increase rate when the accelerator opening is less than the threshold opening and the torque increase rate when the accelerator opening exceeds the threshold opening, according to the motor rotation speed. .
- the torque increase rate when the accelerator opening is less than the threshold opening may be smaller than the torque increasing rate when the accelerator opening exceeds the threshold opening.
- the threshold opening degree is not particularly limited, but may be, for example, half accelerator (50%).
- the torque increase rate when the accelerator opening is 40% is made smaller than the torque increase rate when the accelerator opening is 60%.
- the torque increase rate may be set to a plurality of values (variable values) depending on the accelerator opening degree in each of the cases where the accelerator opening degree exceeds the threshold opening degree and when the accelerator opening degree is less than the threshold opening degree.
- the motor control unit 7 refers to a table (torque increase rate table) in which the accelerator opening degree, the motor rotation speed, and the torque increase rate are associated with each other, and thereby performs the calculation based on the accelerator opening degree and the motor rotation speed. Then, the torque increase rate may be determined.
- the torque increase rate table is, for example, a table in which the torque increase rate corresponding to each accelerator opening degree and each motor rotation speed is expressed in a two-dimensional matrix, with the horizontal axis representing the motor rotational speed and the vertical axis representing the accelerator opening degree. It's okay.
- the motor control unit 7 determines (changes) the torque lowering rate based on the current torque of the motor 3 and the motor rotation speed. Specifically, the motor control unit 7 makes the torque decreasing rate when the current torque is less than the threshold torque smaller than the torque decreasing rate when the current torque exceeds the threshold torque. That is, the motor control unit 7 makes the torque decrease rate when the current torque is less than the threshold torque smaller than the torque decrease rate when the current torque exceeds the threshold torque under the same motor rotation speed condition. Further, the motor control unit 7 determines (changes) the torque decreasing rate when the current torque is less than the threshold torque and the torque decreasing rate when the current torque exceeds the threshold torque, depending on the motor rotation speed. Note that if the motor rotation speeds are different from each other, the torque decreasing rate when the current torque is less than the threshold torque need not be made smaller than the torque decreasing rate when the current torque exceeds the threshold torque.
- the threshold torque is not particularly limited.
- the motor control unit 7 determines the current torque and motor rotation speed of the motor 3 by, for example, referring to a table (torque fall rate table) in which the current torque, motor rotation speed, and torque reduction rate are associated with each other. Based on this, the torque decreasing rate may be determined.
- the torque decrease rate table may be, for example, a table in which the torque decrease rate corresponding to each current torque and each motor rotation speed is expressed in a two-dimensional matrix, with the motor rotation speed as the horizontal axis and the current torque as the vertical axis. good.
- the motor control unit 7 makes the torque decrease rate in the regeneration state smaller than the torque increase rate in the power running state under the same accelerator opening condition. Note that if the accelerator opening is different, the torque decreasing rate in the regenerative state does not have to be smaller than the torque increasing rate in the powering state.
- FIG. 3 is a diagram corresponding to FIG. 2 for explaining the torque rate in each state.
- a state in which the accelerator opening exceeds the threshold opening in the powering state is called a high powering opening state A
- a state in which the accelerator opening is less than the threshold opening in the powering state is called the low powering opening state B. That's what it means.
- the driver In the power running high opening degree state A, the driver is considered to be stepping on the accelerator based on the intention of accelerating the electric vehicle 2 immediately, so the torque increase rate is increased. In other words, the amount of increase in torque per unit time is increased.
- a state in which the current torque is less than the threshold torque in the regenerative state is called a regenerative low torque state C
- a state in which the current torque exceeds the threshold torque in the regenerative state is called the regenerative high torque state D.
- the torque lowering rate is reduced in order to suppress the occurrence of sudden deceleration that is not intended by the driver. In other words, the amount of decrease in torque per unit time is reduced.
- the torque lowering rate is set higher than in the regenerative high torque state D in order to suppress a decrease in the amount of regeneration of the motor 3. In other words, the amount of decrease in torque per unit time is made larger than in the regenerative high torque state D.
- the torque rate (torque decrease rate) in the regenerative low torque state C and the regenerative high torque state D is made smaller than the rate (torque increase rate). More specifically, under conditions where the motor rotation speed is the same, the torque rate is decreased in the order of power running high opening state A, power running low opening state B, regenerative low torque state C, and regenerative high torque state D. Note that since the torque increase rate and the torque decrease rate have opposite signs, reducing the torque rate means reducing the absolute value of the torque rate.
- the motor control unit 7 controls the motor 3 so that the torque of the motor 3 reaches the target torque at the determined torque rate. Specifically, the motor control unit 7 calculates the torque obtained by adding the torque rate to the current torque as the command torque. Then, if the instructed torque is smaller than the target torque, the motor control section 7 controls the motor 3 using the instructed torque. On the other hand, if the instructed torque is greater than or equal to the target torque, the motor control unit 7 controls the motor 3 using the target torque.
- FIG. 4 is a flowchart showing an example of the processing operation of the electric vehicle control device.
- step S1 the electric vehicle control device 1, accelerator opening, motor rotation speed, and current torque are acquired (step S1).
- the accelerator opening degree is acquired from the accelerator opening degree detection section 4, the motor rotation speed is acquired from the motor rotation speed detection section 5, and the current torque is acquired from the current torque detection section 6.
- step S2 the electric vehicle control device 1 determines a target torque based on the accelerator opening degree and motor rotation speed obtained in step S1 (step S2).
- the target torque is obtained, for example, by referring to a governor map.
- step S3 the electric vehicle control device 1 determines whether the target torque obtained in step S2 is larger than the current torque obtained in step S1 (step S3).
- step S3 If it is determined that the target torque is larger than the current torque (step S3: YES), the electric vehicle control device 1 determines that the electric vehicle is in a power running state, and based on the accelerator opening degree and motor rotation speed acquired in step S1. A torque increase rate (torque rate) is determined (step S4). In step S4, the electric vehicle control device 1 refers to the torque increase rate table, etc., and determines that the torque increase rate when the accelerator opening is less than the threshold opening is the torque when the accelerator opening exceeds the threshold opening. Find the torque increase rate so that it is smaller than the increase rate.
- step S3 determines that the regeneration state is in effect, and uses the current torque and motor rotation speed acquired in step S1. Based on this, the torque lowering rate (torque rate) is determined (step S5).
- the electric vehicle control device 1 refers to the torque decrease rate table, etc., and determines that the torque decrease rate when the current torque is less than the threshold torque is lower than the torque decrease rate when the current torque exceeds the threshold torque. Find the torque drop rate so that it becomes smaller. Further, when the electric vehicle control device 1 determines that the target torque is larger than the current torque by referring to the torque descending rate table (step S3: YES), the torque rate becomes smaller than the desired torque increasing rate. Find the torque drop rate as follows.
- the electric vehicle control device 1 generates a command torque based on the current torque acquired in step S1 and the torque increase rate (torque rate) determined in step S4 or the torque decrease rate (torque rate) determined in step S5. (Step S6).
- the electric vehicle control device 1 obtains the command torque by adding the determined torque increase rate or torque decrease rate to the current torque.
- the electric vehicle control device 1 determines whether the command torque determined in step S6 is smaller than the target torque determined in step S2 (step S7).
- step S7 If it is determined that the instructed torque is smaller than the target torque (step S7: YES), the electric vehicle control device 1 controls the motor 3 with the instructed torque obtained in step S6 (step S8). Then, the electric vehicle control device 1 once ends the process and repeats it again from step S1.
- step S7 determines that the instructed torque is not smaller than the target torque.
- step S9 determines that the instructed torque is not smaller than the target torque.
- step S9 the electric vehicle control device 1 controls the motor 3 with the target torque determined in step S2 (step S9). Then, the electric vehicle control device 1 once ends the process and repeats it again from step S1.
- the torque rate can be changed based on the accelerator opening degree, which is the driver's operation.
- the driver's intention can be appropriately reflected.
- this electric vehicle control device 1 by determining the torque rate based on the accelerator opening degree and the motor rotation speed, the torque rate can be changed taking into account the effects of running resistance, etc., which vary depending on the vehicle speed. Thereby, for example, a good driving feeling can be given to the driver in each vehicle speed range.
- the torque rate when the accelerator opening is less than the threshold opening is made smaller than the torque rate when the accelerator opening is above the threshold opening.
- the torque rate when the current torque is less than the threshold torque is made smaller than the torque rate when the current torque exceeds the threshold torque.
- the torque increase rate was described as being changed based on the accelerator opening degree and the motor rotation speed, but the torque increase rate is changed based on the accelerator opening degree, but depending on the motor rotation speed. It may be left unchanged.
- the torque rate is described as changing both the torque increase rate and the torque decrease rate, but it is also possible to change only the torque increase rate.
- SYMBOLS 1...Electric vehicle control device 2...Electric vehicle, 3...Motor, 4...Accelerator opening detection section, 5...Motor rotation speed detection section, 6...Torque detection section, 7...Motor control section, A...Power running high opening State, B: Power running low opening state, C: Regenerative low torque state, D: Regenerative high torque state.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
Description
Claims (5)
- モータを駆動源とする電動車の加減速を制御する電動車制御装置であって、
前記電動車のアクセル開度を検出するアクセル開度検出部と、
モータ回転数を検出するモータ回転数検出部と、
前記モータを制御するモータ制御部と、を備え、
前記モータ制御部は、
前記アクセル開度及び前記モータ回転数に基づいて目標トルクを求め、
前記アクセル開度に基づいて単位時間当たりのトルクの変化量であるトルクレートを求め、
前記モータのトルクが前記トルクレートで前記目標トルクとなるように前記モータを制御する、
電動車制御装置。 - 前記モータ制御部は、前記モータ回転数にも基づいて前記トルクレートを求める、
請求項1に記載の電動車制御装置。 - 前記モータが発生している現在トルクを検出する現在トルク検出部を更に備え、
前記目標トルクが前記現在トルクよりも大きい力行状態では、前記モータ制御部は、前記アクセル開度が閾値開度を下回る場合の前記トルクレートを、前記アクセル開度が前記閾値開度を上回る場合の前記トルクレートよりも小さくする、
請求項1又は2に記載の電動車制御装置。 - 前記目標トルクが前記現在トルクよりも小さい回生状態では、前記モータ制御部は、前記現在トルクが閾値トルクを下回る場合の前記トルクレートを、前記現在トルクが前記閾値トルクを上回る場合の前記トルクレートよりも小さくする、
請求項3に記載の電動車制御装置。 - 前記モータ制御部は、前記アクセル開度が同じ条件において、前記回生状態の前記トルクレートを、前記力行状態の前記トルクレートよりも小さくする、
請求項4に記載の電動車制御装置。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18/859,346 US20250282231A1 (en) | 2022-04-27 | 2023-04-18 | Electric vehicle control device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2022072923A JP7851778B2 (ja) | 2022-04-27 | 2022-04-27 | 電動車制御装置 |
| JP2022-072923 | 2022-04-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023210440A1 true WO2023210440A1 (ja) | 2023-11-02 |
Family
ID=88518609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2023/015462 Ceased WO2023210440A1 (ja) | 2022-04-27 | 2023-04-18 | 電動車制御装置 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20250282231A1 (ja) |
| JP (1) | JP7851778B2 (ja) |
| WO (1) | WO2023210440A1 (ja) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004112973A (ja) * | 2002-09-20 | 2004-04-08 | Toyota Motor Corp | 車両のスリップ制御装置及びその制御方法 |
| JP2013121231A (ja) * | 2011-12-07 | 2013-06-17 | Hitachi Automotive Systems Ltd | 電動車両の制御装置 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016027278A (ja) * | 2014-06-30 | 2016-02-18 | アイシン精機株式会社 | 車両の制御装置および車両の駆動システム |
| US11597386B2 (en) | 2018-08-01 | 2023-03-07 | Cummins Inc. | System and method for regenerative braking torque scheduling |
-
2022
- 2022-04-27 JP JP2022072923A patent/JP7851778B2/ja active Active
-
2023
- 2023-04-18 WO PCT/JP2023/015462 patent/WO2023210440A1/ja not_active Ceased
- 2023-04-18 US US18/859,346 patent/US20250282231A1/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004112973A (ja) * | 2002-09-20 | 2004-04-08 | Toyota Motor Corp | 車両のスリップ制御装置及びその制御方法 |
| JP2013121231A (ja) * | 2011-12-07 | 2013-06-17 | Hitachi Automotive Systems Ltd | 電動車両の制御装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7851778B2 (ja) | 2026-04-27 |
| JP2023162546A (ja) | 2023-11-09 |
| US20250282231A1 (en) | 2025-09-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3486111B1 (en) | Torque control method and torque control device | |
| US10793009B2 (en) | Vehicle driving force control apparatus | |
| US20220258754A1 (en) | Vehicle control device | |
| CN102267365B (zh) | 机动车辆 | |
| CN116368046A (zh) | 电动汽车的控制方法、以及电动汽车的控制系统 | |
| JP2012090413A (ja) | モータトルク制御装置 | |
| CN115257733A (zh) | 一种巡航控制方法、装置及设备 | |
| CN107599889A (zh) | 一种倒车控制方法、装置及电动汽车 | |
| CN108691670A (zh) | 汽车及汽车的控制方法 | |
| CN109591796B (zh) | 用于混合动力车辆的控制装置 | |
| JP6733385B2 (ja) | ハイブリッド車両の制御装置 | |
| JP7176360B2 (ja) | 電動車両 | |
| WO2023210440A1 (ja) | 電動車制御装置 | |
| JP7172456B2 (ja) | 変速制御装置 | |
| JP7784045B2 (ja) | 車両の制御装置 | |
| JP7385464B2 (ja) | 車両用制御装置 | |
| JP2023095387A (ja) | 内燃機関の制御装置 | |
| JP2025077452A (ja) | 電動車両の制御装置 | |
| JP6355112B2 (ja) | 車両用制御装置、および情報提供方法 | |
| EP4400348A1 (en) | Control device of vehicle | |
| JP7480696B2 (ja) | 制御装置 | |
| JP3517356B2 (ja) | ハイブリッド駆動システム | |
| JP6977320B2 (ja) | 車両の制御装置 | |
| WO2023058639A1 (ja) | 車両制御装置 | |
| WO2026076697A1 (zh) | 一种电机控制方法、装置和车辆 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 23796183 Country of ref document: EP Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 18859346 Country of ref document: US |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2401007013 Country of ref document: TH |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 23796183 Country of ref document: EP Kind code of ref document: A1 |
|
| WWP | Wipo information: published in national office |
Ref document number: 18859346 Country of ref document: US |