WO2020217795A1 - モータ制御装置及びこれを用いた電動ブレーキ装置、並びにモータ制御方法及びこの制御方法を用いた電動ブレーキ制御方法 - Google Patents
モータ制御装置及びこれを用いた電動ブレーキ装置、並びにモータ制御方法及びこの制御方法を用いた電動ブレーキ制御方法 Download PDFInfo
- Publication number
- WO2020217795A1 WO2020217795A1 PCT/JP2020/012137 JP2020012137W WO2020217795A1 WO 2020217795 A1 WO2020217795 A1 WO 2020217795A1 JP 2020012137 W JP2020012137 W JP 2020012137W WO 2020217795 A1 WO2020217795 A1 WO 2020217795A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- angle sensor
- sensor
- angle
- motor
- failure
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/02—Providing protection against overload without automatic interruption of supply
- H02P29/024—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load
- H02P29/028—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load the motor continuing operation despite the fault condition, e.g. eliminating, compensating for or remedying the fault
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/02—Providing protection against overload without automatic interruption of supply
- H02P29/024—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/88—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means
- B60T8/885—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means using electrical circuitry
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/74—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with electrical assistance or drive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/17—Using electrical or electronic regulation means to control braking
- B60T8/171—Detecting parameters used in the regulation; Measuring values used in the regulation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T8/00—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force
- B60T8/32—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration
- B60T8/88—Arrangements for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions, e.g. limiting or varying distribution of braking force responsive to a speed condition, e.g. acceleration or deceleration with failure responsive means, i.e. means for detecting and indicating faulty operation of the speed responsive control means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/02—Details of stopping control
- H02P3/04—Means for stopping or slowing by a separate brake, e.g. friction brake or eddy-current brake
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
- H02P3/08—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing a DC motor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/14—Electronic commutators
- H02P6/16—Circuit arrangements for detecting position
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T2220/00—Monitoring, detecting driver behaviour; Signalling thereof; Counteracting thereof
- B60T2220/04—Pedal travel sensor, stroke sensor; Sensing brake request
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T2270/00—Further aspects of brake control systems not otherwise provided for
- B60T2270/40—Failsafe aspects of brake control systems
- B60T2270/402—Back-up
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T2270/00—Further aspects of brake control systems not otherwise provided for
- B60T2270/40—Failsafe aspects of brake control systems
- B60T2270/413—Plausibility monitoring, cross check, redundancy
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P2101/00—Special adaptation of control arrangements for generators
- H02P2101/45—Special adaptation of control arrangements for generators for motor vehicles, e.g. car alternators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P2203/00—Indexing scheme relating to controlling arrangements characterised by the means for detecting the position of the rotor
- H02P2203/03—Determination of the rotor position, e.g. initial rotor position, during standstill or low speed operation
Definitions
- the present invention relates to a motor control device, an electric brake device using the motor control device, a motor control method, and an electric brake control method using the control method.
- Patent Document 1 provides a motor position sensor that detects the rotation position (angle) of the motor rotor and two output shaft sensors that detect the rotation angle of the output shaft of the motor, and the difference between the two output shaft sensors is equal to or greater than a predetermined value.
- either or both of the output shaft sensors are determined to be abnormal, then the presence or absence of an abnormality in the motor position sensor is determined. If the motor position sensor is abnormal, motor control is stopped and the motor position sensor is normal. If there is, a technique for calculating the output shaft rotation angle from the motor position sensor is disclosed.
- Patent Document 2 discloses a technique in which two temperature sensors are connected to different MPUs and the sub MPU diagnoses the main MPU and the temperature sensor connected to the main MPU.
- Patent Document 1 another type of motor position sensor is prepared for diagnosis of two output shaft sensors and connected to the MPU, so that the number of parts and the connection signal line connecting the sensor and the MPU increase. There is a possibility that the number of parts has increased and the signal line is broken, and there is a problem that the reliability is lowered.
- Patent Document 2 when the sub MPU side fails, there is a problem that the processing is stopped because the diagnosis on the main MPU side cannot be performed.
- An object of the present invention is a motor control device capable of solving the above problems, suppressing an increase in the number of parts and the number of connection signal lines to realize redundancy, an electric brake device using the same, a motor control method, and the like.
- An object of the present invention is to provide an electric brake control method using a control method.
- the features of the present invention are a first angle sensor and a second angle sensor that detect the rotation angle of the motor, and the first angle sensor that controls the motor based on a command value.
- a first control circuit unit that receives the detected value of, a second control circuit unit that controls the motor based on the command value and receives the detected value of the second angle sensor, and the first control circuit unit.
- the first control circuit unit includes a communication unit that transmits and receives signals to and from the second control circuit unit, and the first control circuit unit receives the detection value of the first angle sensor and the second communication unit received via the communication unit.
- the angle sensor failure detection unit for detecting the failure of the first angle sensor and the second angle sensor from the detection value of the angle sensor and the control angle of the motor generated in response to the command value is provided. is there.
- a motor control device capable of suppressing an increase in the number of parts and the number of connection signal lines to realize redundancy, an electric brake device using the motor control device, a motor control method, and an electric motor using the control method.
- a brake control method can be provided.
- the block block diagram of the electric brake control device which concerns on 1st Embodiment of this invention.
- the flowchart of the failure detection method of the angle sensor which concerns on 1st Embodiment of this invention.
- the flowchart which executes the failure diagnosis when the motor control is performed only by one MPU which concerns on 1st Embodiment of this invention.
- the block block diagram of the motor control unit 109 which concerns on 1st Embodiment of this invention.
- the block block diagram of the sensor output expected value generation part 111 which concerns on 1st Embodiment of this invention.
- the block block diagram of the angle sensor failure detection part 113 which concerns on 1st Embodiment of this invention.
- the figure which shows the determination example of the angle sensor failure detection part which concerns on 1st Embodiment of this invention.
- the block block diagram of the electric brake control device which concerns on 2nd Embodiment of this invention.
- the present invention relates to a motor control device, and as an example thereof, an example applied to an electric brake control device will be described below.
- the various components of the present invention do not necessarily have to be independent of each other, and one component is composed of a plurality of members, a plurality of components are composed of one member, and a certain component is different. It is allowed that a part of one component overlaps with a part of another component.
- FIG. 1 is a block configuration diagram of an electric brake control device according to a first embodiment of the present invention.
- the electric caliper 101 is a component constituting a disc brake of a car tire, and has a function of controlling the opening and closing of a brake pad sandwiching the brake disc by a motor.
- a two-winding brushless DC motor is used as the motor.
- the angle sensor 102 (first angle sensor) and angle sensor 103 (second angle sensor) provided in the electric caliper 101 are means for detecting the rotation angle of the shaft of the two-winding brushless DC motor 104, and are generally a resolver or the like. It has been known.
- the two-winding brushless DC motor 104 which is the drive unit of the electric caliper 101, has two windings of each of the three coils arranged around the rotor, and even if one winding is broken. By energizing with another winding, it is possible to prevent the motor from stopping rotating. Therefore, two systems of three-phase current are input to each coil. As a control example, normally, two coils each generate 50% rotational force to generate a total of 100% rotational force, but if one fails, the other generates 100% rotational force. To prevent a decrease in rotational force.
- the motor drivers 105 and 106 are used for control signals from the motor control unit 109 provided in the MPU 107 (microcomputer unit) as the first control circuit unit and the motor control unit 110 provided in the MPU 108 as the second control circuit unit. It is a means to output the three-phase current required to drive the motor accordingly.
- the MPUs 107 and 108 are means for receiving an input signal from the stroke sensor 117 and controlling the motor in the electric caliper to operate the electric brake in response to the signal.
- a redundant configuration with two MPUs is used. In 1-fail operation, when one of the core components constituting the system fails and loses its function, another component replaces a part of the function and continues the operation for a certain period of time.
- the motor control units 109 and 110 are means for rotating the motor by an angle corresponding to the input signal from the stroke sensor 117.
- the configurations of the motor control units 109 and 110 will be described later with reference to FIG.
- the sensor output expected value generation units 111 and 112 are means for generating expected output values for determining whether or not the outputs of the angle sensors 102 and 103 are normal.
- the configuration of the sensor output expected value generation units 111 and 112 will be described later with reference to FIG.
- the angle sensor failure detection units 113 and 114 are means for determining whether or not the angle sensor is normal. The configuration of the angle sensor failure detection units 113 and 114 will be described later with reference to FIG.
- Communication units 115 and 116 are means for transmitting and receiving data between MPU 107 and 108.
- it is realized by the CAN communication method, which is a communication standard for automobiles.
- the stroke sensor 117 is a means for detecting the amount of depression when the driver depresses the brake pedal.
- two stepping amount detection units are provided inside, and each output is connected to MPU 107 and MPU 108, respectively.
- the stroke sensor 117 detects the depressing displacement amount
- the motor control unit 109 in the MPU 107 and MPU 108 and The motor control unit 110 receives the detected value.
- the motor control unit 109 and the motor control unit 110 control the rotation amount and rotation speed of the motor according to the stepping displacement amount per unit time, and rotate the double-winding brushless DC motor 104 in the electric caliper 101. ..
- the rotation angle per control unit time of the motor is detected by the angle sensor 102 and the angle sensor 103, and the detected values are received by the MPU 107 and the MPU 108 and fed back to the motor control unit 109 and the motor control unit 110.
- the braking operation is performed by controlling the frictional force between the brake pad and the brake disc in the electric caliper.
- FIG. 2 is a flowchart of a failure detection method of the angle sensor according to the first embodiment of the present invention, and is a flowchart at the start of traveling and at the time of normal operation.
- the angle of the 2-winding brushless DC motor 104 is detected by the angle sensor 102, and the output value (detection value) is input to the angle sensor failure detection unit 113 in the MPU 107 (step S10).
- the MPU 107 receives the detected value of the angle sensor 102.
- the angle of the 2-winding brushless DC motor 104 is detected by the angle sensor 103, the output value (detection value) is received by the MPU 108, and the angle sensor in the MPU 107 is passed through the communication unit 116 of the MPU 108 and the communication unit 115 of the MPU 107. Input to the failure detection unit 113 (step S11).
- the sensor output expected value generation unit 111 generates a motor control angle according to the stroke sensor 117 and inputs it to the angle sensor failure detection unit 113 (step S12).
- the angle sensor failure detection unit 113 compares the three outputs of the angle sensor 102, the angle sensor 103, and the sensor output expected value generation unit 111 with the determination threshold, and executes the failure diagnosis (step S13).
- the judgment threshold is a standard for judging the presence or absence of failure diagnosis.
- the failure diagnosis executes the following processing according to the output from the determination unit 408 of the angle sensor failure detection unit 113, which will be described later.
- step S14 If the three output differences are within the threshold value, the motor control system composed of the two angle sensors and the motor 104, MPU 107 and 108 is determined to be normal (No in step S14). If the three output differences are outside the threshold value, the motor control system composed of the two angle sensors and the motor 104, MPU 107 and 108 is determined to be abnormal (Yes in step S14), and the motor control by the MPU 107 and MPU 108 is stopped (Yes). Step S15).
- the output of the angle sensor 102 and the failure of the angle sensor 103 are determined. If the output difference between the output value of the angle sensor 103 obtained via the communication units 116 and 115 and the output value of the sensor output expected value generation unit 111 is outside a predetermined threshold value, the angle sensor 103 is determined to be defective. (Yes in step S16). When the angle sensor 103 is determined to be defective, the motor control by the MPU 108 is stopped, and the motor control is executed only by the MPU 107 (step S17). In this case, the angle sensor failure detection unit 113 outputs a stop command to the motor control unit 110 of the MPU 108 through the communication unit 115.
- the angle sensor 103 is determined to be normal. (No in step S16).
- step S18 if the output difference between the output value of the angle sensor 102 and the output value of the sensor output expected value generation unit 111 is outside the threshold value, the angle sensor 102 is determined to be defective (Yes in step S18).
- the motor control is executed only by the MPU 108 (step S19).
- the angle sensor 102 is determined to be normal (No in step S18).
- step S20 determines that the failure occurs ( Yes) in step S20.
- the motor control is executed only by the MPU 108 (step S19).
- the motor control system is determined to be normal (step S20). No) and continue motor control.
- FIG. 3 is a flowchart for executing a failure diagnosis when the motor is controlled by only one MPU according to the first embodiment of the present invention.
- step S18 of FIG. 2 when the motor control is executed only by the MPU 108, the failure diagnosis is executed according to the following flow.
- the angle of the two-winding brushless DC motor 104 is detected by the angle sensor 103, and the output value is input to the angle sensor failure detection unit 114 in the MPU 108 (step S30).
- the MPU 108 receives the detection value of the angle sensor 103.
- the sensor output expected value generation unit 112 generates a motor control angle according to the stroke sensor 117 and inputs it to the angle sensor failure detection unit 114 (step S31).
- the angle sensor failure detection unit 114 compares the two outputs of the angle sensor 103 and the sensor output expected value generation unit 111 with the determination threshold, executes a failure diagnosis (step S32), and outputs the determination result from the angle sensor failure detection unit 114. Output (step S33). In the failure diagnosis, the following processing is executed according to the output from the determination unit of the angle sensor failure detection unit 114, which will be described later.
- step S34 If the difference between the output value of the angle sensor 103 and the output of the sensor output expected value generation unit 112 is outside the determination threshold range, it is determined that the angle sensor 103 and the motor control system have failed (Yes in step S34), and the motor by the MPU 108 is determined. The control is stopped (step S35).
- the angle sensor 103 and the motor control system are determined to be normal (No in step S34), and the MPU 108 Continue motor control by.
- FIG. 4 is a block configuration diagram of the motor control unit 109 according to the first embodiment of the present invention.
- the displacement amount detection unit 201 is a means for detecting the displacement amount of the brake pedal from the input signal from the stroke sensor 117.
- the input signal from the stroke sensor 117 becomes a command value for controlling the motor.
- the angle calculation unit 202 is a means for converting the displacement amount of the stroke sensor into a target angle (control angle) realized by the rotation of the motor.
- the difference calculation unit 203 is a means for calculating the difference between the current angle information input from the angle sensor 102 and the target angle obtained by the angle calculation unit 202.
- the PID control unit 204 is a means for controlling the force applied to the motor according to the difference amount of the difference calculation unit 203, and calculates the torque amount generated by the motor for each control cycle.
- the three-phase control unit 205 controls the frequency and phase of the three-phase pulse output and the pulse duty according to the output of the PID control unit 204, further counts the number of pulses, and outputs the total count number for each control cycle. Is.
- the motor control unit 110 has the same configuration as described above.
- FIG. 5 is a block configuration diagram of the sensor output expected value generation unit 111 according to the first embodiment of the present invention.
- the storage unit 301 is a means for storing the output of the angle sensor 102 one control cycle before.
- the angle calculation unit 302 is a means for calculating the angle rotated by the motor control this time from the angle one control cycle before and the number of pulses output to the motor by this control. This value is used as the expected output value of the angle sensor. Further, although not shown, the sensor output expected value generation unit 112 has the same configuration as described above.
- FIG. 6 is a block configuration diagram of the angle sensor failure detection unit 113 according to the first embodiment of the present invention.
- the difference detection units 401, 404 and 406 are means for obtaining the difference between the two input values and further obtaining and outputting the absolute value.
- the determination threshold storage unit 402 is a means for storing a threshold value for determining whether or not the angle sensor 102 is normal.
- the binarization units 403, 405 and 407 compare the threshold value stored in the determination threshold value storage unit 402 with the inputs from the difference detection units 401, 404 and 406, respectively, and if the difference detection value is equal to or less than the determination threshold value. "1" which means normal is output, and "0" which means failure is output otherwise.
- the determination unit 408 is a motor control system (MPU 107, motor driver 105, and motor) including angle sensors 102 and 103, MPU 107, a motor driver 105, and a motor 104 according to input values from the three binarization units 403, 405, and 407. 104) is a means for determining whether it is normal or defective.
- the angle sensor failure detection unit 114 also has the same configuration as described above.
- FIG. 7 is a diagram showing a determination example of the angle sensor failure detection unit according to the first embodiment of the present invention.
- FIG. 7 shows the output result of the output Y for the inputs A, B, and C.
- the breakdown of Y is the angle sensor 102, the angle sensor 103, and the motor control system.
- the angle sensor 102 determines that the failure has occurred. If B of the inputs A, B, and C is “1” and the other inputs are “0”, the angle sensor 103 determines that the failure has occurred. If A of the inputs A, B, and C is "1” and the other inputs are "0”, the motor control system determines that the failure has occurred.
- the motor control can be continued by using the other angle sensor and the motor control system.
- a sensor other than the angle sensor is not newly used, it is possible to suppress an increase in the number of parts and the number of connection signal lines and realize redundancy.
- FIG. 8 is a block configuration diagram of the electric brake control device according to the second embodiment of the present invention.
- the difference between the second embodiment and the first embodiment is that the thrust sensors 604 and 605 are provided.
- the electric caliper 101 includes a two-winding brushless DC motor 104, angle sensors 102 and 103 for detecting the rotation angle of the shaft of the two-winding brushless DC motor 104, a thrust sensor 604 (first thrust sensor), and a thrust sensor.
- a 605 (second thrust sensor) is provided.
- Thrust sensors 604 and 605 are means for detecting the pressing force of the brake pads on the brake disc. The braking force is determined from this output value.
- the two-winding brushless DC motor 104 of the second embodiment has two windings of each of the three coils arranged around the rotor, and one winding is broken. However, by energizing with another winding system, the rotation of the motor is prevented from stopping.
- the motor control units 610 and 615 control the rotation angle and rotation speed of the motor by inputting the stroke sensor 117, the angle sensors 102 and 103, and the thrust sensors 604 and 605.
- the sensor output expected value generation units 611 and 616 are means for generating expected output values for determining whether or not the outputs of the angle sensors 102 and 103 and the thrust sensors 604 and 605 are normal.
- the sensor output expected value generation units 611 and 616 generate expected output values corresponding to the respective sensors of the angle sensor and the thrust sensor. Further, in the sensor output expected value generation units 611 and 616, as in the sensor output expected value generation unit 111 in the angle sensor shown in FIG. 5, the thrust sensors 604 and 605 also input the pulse number of the motor control unit 109 and one control cycle. From the output values of the previous thrust sensors 604 and 605, the expected output values of the current thrust sensors 604 and 605 are calculated and output.
- the sensor failure detection unit 612,617 is a means for detecting failures of the angle sensors 102, 103 and the thrust sensors 604,605.
- the sensor failure detection unit 612,617 of the second embodiment has a function as an angle sensor failure detection unit and a function as a thrust sensor failure detection unit.
- the failure detection units of the angle sensors 102 and 103 and the thrust sensors 604 and 605 are executed by the same process as the configuration shown in FIG. At this time, in detecting the failure of the thrust sensors 604 and 605, the angle sensor 102 of FIG. 6 is replaced with the thrust sensor 604, and the sensor output expected value generation unit 111 generates the expected output value of the thrust sensor.
- the motor control can be continued by using the other angle sensor, the thrust sensor, and the motor control system. At that time, in this embodiment, it is possible to realize redundancy by suppressing an increase in the number of parts and the number of connection signal lines.
- Storage unit 302 ... Angle calculation unit, 401 ... Difference detection Unit, 402 ... judgment threshold storage unit, 403 ... binarization unit, 404 ... difference detection unit, 405 ... binarization unit, 406 ... difference detection unit, 407 ... binarization unit, 408 ... judgment unit, 604 ... thrust Sensor, 605 ... Thrust sensor, 610 ... Motor control unit, 611 ... Sensor output expected value generation unit, 612 ... Sensor failure detection unit, 615 ... Motor control unit, 616 ... Sensor output expected value generation unit, 617 ... Sensor failure detection unit
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Regulating Braking Force (AREA)
- Control Of Electric Motors In General (AREA)
- Braking Systems And Boosters (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
Description
本実施例では、モータとして2巻線ブラシレスDCモータを用いる。
(ステップS20のYes)。モータ制御系が故障と判定されると、MPU108のみでモータ制御を実行する(ステップS19)。
次に図3を用いて、MPU108のみでモータ制御を行う場合の故障診断について説明する。図3は、本発明の第1実施例に係る一方のMPUのみでモータ制御を行う場合の故障診断を実行するフローチャートである。
センサ出力期待値生成部611、616では、角度センサ及び推力センサのそれぞれのセンサに対応する出力期待値を生成する。また、センサ出力期待値生成部611、616では、図5に示す角度センサにおけるセンサ出力期待値生成部111と同様に、推力センサ604,605についてもモータ制御部109のパルス数入力と1制御周期前の推力センサ604,605の出力値から現時点の推力センサ604,605の出力期待値を演算で求め出力する。
Claims (16)
- モータの回転角度を検出する第1角度センサ及び第2角度センサと、指令値に基づいて前記モータを制御すると共に前記第1角度センサの検出値を受信する第1制御回路部と、前記指令値に基づいて前記モータを制御すると共に前記第2角度センサの検出値を受信する第2制御回路部と、前記第1制御回路部と前記第2制御回路部との間で信号の送受信を行う通信部とを備え、
前記第1制御回路部は、
前記第1角度センサの検出値と、前記通信部を介して受信した前記第2角度センサの検出値と、前記指令値に応じて生成された前記モータの制御角とから、前記第1角度センサ及び前記第2角度センサの故障を検出する角度センサ故障検出部を備えたことを特徴とするモータ制御装置。 - 請求項1において、
前記角度センサ故障検出部は、故障診断の有無を判定する判定閾値を備えたことを特徴とするモータ制御装置。 - 請求項2において、
前記角度センサ故障検出部は、前記第2角度センサの検出値と前記指令値に応じて生成された前記モータの制御角との出力差が前記判定閾値外であれば、前記第2角度センサを故障と判定することを特徴するモータ制御装置。 - 請求項3において、
前記第2角度センサが故障と判定された場合、前記角度センサ故障検出部は前記第2制御回路部を停止させ、前記第1制御回路部のみで前記モータを制御することを特徴とするモータ制御装置。 - 請求項2において、
前記角度センサ故障検出部は、前記第2角度センサが正常と判定された後、前記第1角度センサの検出値と前記指令値に応じて生成された前記モータの制御角との出力差と、前記判定閾値とを比較し前記第1角度センサの故障を判定することを特徴するモータ制御装置。 - 請求項5において、
前記第1角度センサが故障と判定された場合、前記角度センサ故障検出部は前記第1制御回路部を停止させ、前記第2制御回路部のみで前記モータを制御することを特徴とするモータ制御装置。 - モータの回転角度を検出する第1角度センサ及び第2角度センサと、指令値に基づいて前記モータを制御すると共に前記第1角度センサの検出値を受信する第1制御回路部と、前記指令値に基づいて前記モータを制御すると共に前記第2角度センサの検出値を受信する第2制御回路部と、前記第1制御回路部と前記第2制御回路部との間で信号の送受信を行う通信部とを備え、
前記第1制御回路部は、
前記第1角度センサ及び前記第2角度センサの故障を検出する角度センサ故障検出部を備え、
前記第1角度センサの検出値を前記角度センサ故障検出部に入力するステップと、前記通信部を介して受信した前記第2角度センサの検出値を前記角度センサ故障検出部に入力するステップと、前記指令値に応じて生成された前記モータの制御角を前記角度センサ故障検出部に入力するステップと、前記第1角度センサの検出値、前記第2角度センサの検出値、前記指令値に応じて生成された前記モータの制御角及び判定閾値から故障診断を行うステップとを備えたことを特徴とするモータ制御方法。 - 請求項7において、
前記角度センサ故障検出部は、故障診断の有無を判定する判定閾値を備え、 前記角度センサ故障検出部は、前記第2角度センサの検出値と前記指令値に応じて生成された前記モータの制御角との出力差と、前記判定閾値とを比較し前記第2角度センサの故障判定を実行するステップを備えたことを特徴するモータ制御方法。 - 請求項8において、
前記角度センサ故障検出部は、前記第2角度センサが正常と判定された後、前記第1角度センサの検出値と前記指令値に応じて生成された前記モータの制御角との出力差と、前記判定閾値とを比較し前記第1角度センサの故障判定を実行するステップを備えたことを特徴するモータ制御方法。 - 請求項9において、
前記角度センサ故障検出部は、前記第1角度センサ及び前記第2角度センサが正常と判定された後、前記第1角度センサの検出値と、前記第2角度センサの検出値と、前記指令値に応じて生成された前記モータの制御角と、前記判定閾値とから前記第1制御回路部の故障判定を実行するステップを備えたことを特徴するモータ制御方法。 - ブレーキディスクを挟むブレーキパッドの開閉を行うモータと、前記モータの回転角度を検出する第1角度センサ及び第2角度センサと、ブレーキペダルの踏み込み量を検出するストロークセンサと、前記ストロークセンサの踏み込み量に基づいて前記モータを制御すると共に前記第1角度センサの検出値を受信する第1制御回路部と、前記ストロークセンサの踏み込み量に基づいて前記モータを制御すると共に前記第2角度センサの検出値を受信する第2制御回路部と、前記第1制御回路部と前記第2制御回路部との間で信号の送受信を行う通信部とを備え、
前記第1制御回路部は、
前記第1角度センサの検出値と、前記通信部を介して受信した前記第2角度センサの検出値と、前記ストロークセンサの踏み込み量に応じて生成された前記モータの制御角とから、前記第1角度センサ及び前記第2角度センサの故障を検出するセンサ故障検出部を備えたことを特徴とする電動ブレーキ制御装置。 - 請求項11において、
前記ブレーキディスクに対する前記ブレーキパッドの加圧力を検出する第1推力センサ及び第2推力センサを備え、
前記センサ故障検出部は、
前記第1推力センサの検出値と、前記通信部を介して受信した前記第2推力センサの検出値と、前記ストロークセンサの踏み込み量に応じて生成された前記モータの制御角とから、前記第1推力センサ及び前記第2推力センサの故障を検出することを特徴とする電動ブレーキ制御装置。 - ブレーキディスクを挟むブレーキパッドの開閉を行うモータと、前記モータの回転角度を検出する第1角度センサ及び第2角度センサと、ブレーキペダルの踏み込み量を検出するストロークセンサと、前記ストロークセンサの踏み込み量に基づいて前記モータを制御すると共に前記第1角度センサの検出値を受信する第1制御回路部と、前記ストロークセンサの踏み込み量に基づいて前記モータを制御すると共に前記第2角度センサの検出値を受信する第2制御回路部と、前記第1制御回路部と前記第2制御回路部との間で信号の送受信を行う通信部とを備え、
前記第1制御回路部は、
前記第1角度センサ及び前記第2角度センサの故障を検出するセンサ故障検出部を備え、
前記第1角度センサの検出値を前記センサ故障検出部に入力するステップと、前記通信部を介して受信した前記第2角度センサの検出値を前記センサ故障検出部に入力するステップと、前記ストロークセンサの踏み込み量に応じて生成された前記モータの制御角を前記センサ故障検出部に入力するステップと、前記第1角度センサの検出値、前記第2角度センサの検出値、前記ストロークセンサの踏み込み量に応じて生成された前記モータの制御角及び判定閾値から故障診断を行うステップとを備えたことを特徴とする電動ブレーキ制御方法。 - 請求項13において、
前記センサ故障検出部は、故障診断の有無を判定する判定閾値を備え、
前記センサ故障検出部は、前記第2角度センサの検出値と前記ストロークセンサの踏み込み量に応じて生成された前記モータの制御角との出力差と、前記判定閾値とを比較し前記第2角度センサの故障判定を実行するステップを備えたことを特徴する電動ブレーキ制御方法。 - 請求項14において、
前記センサ故障検出部は、前記第2角度センサが正常と判定された後、前記第1角度センサの検出値と前記ストロークセンサの踏み込み量に応じて生成された前記モータの制御角との出力差と、前記判定閾値とを比較し前記第1角度センサの故障判定を実行するステップを備えたことを特徴する電動ブレーキ制御方法。 - 請求項15において、
前記センサ故障検出部は、前記第1角度センサ及び前記第2角度センサが正常と判定された後、前記第1角度センサの検出値と、前記第2角度センサの検出値と、前記ストロークセンサの踏み込み量に応じて生成された前記モータの制御角と、前記判定閾値とから前記第1制御回路部の故障判定を実行するステップを備えたことを特徴する電動ブレーキ制御方法。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020217029616A KR102555204B1 (ko) | 2019-04-24 | 2020-03-18 | 모터 제어 장치 및 이것을 사용한 전동 브레이크 장치, 그리고 모터 제어 방법 및 이 제어 방법을 이용한 전동 브레이크 제어 방법 |
| CN202080022908.6A CN113678367A (zh) | 2019-04-24 | 2020-03-18 | 马达控制装置及使用该装置的电动制动装置、以及马达控制方法及使用该方法的电动制动控制方法 |
| US17/439,939 US12233839B2 (en) | 2019-04-24 | 2020-03-18 | Redundancy based electric brake failure detection method and device using the same |
| DE112020000915.7T DE112020000915T5 (de) | 2019-04-24 | 2020-03-18 | Motorsteuervorrichtung und Elektrobremsvorrichtung die sie verwendet, und Motorsteuerverfahren und Elektrobremssteuerverfahren, das es verwendet |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019082606A JP7242399B2 (ja) | 2019-04-24 | 2019-04-24 | モータ制御装置及びこれを用いた電動ブレーキ装置、並びにモータ制御方法及びこの制御方法を用いた電動ブレーキ制御方法 |
| JP2019-082606 | 2019-04-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2020217795A1 true WO2020217795A1 (ja) | 2020-10-29 |
Family
ID=72942093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2020/012137 Ceased WO2020217795A1 (ja) | 2019-04-24 | 2020-03-18 | モータ制御装置及びこれを用いた電動ブレーキ装置、並びにモータ制御方法及びこの制御方法を用いた電動ブレーキ制御方法 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US12233839B2 (ja) |
| JP (1) | JP7242399B2 (ja) |
| KR (1) | KR102555204B1 (ja) |
| CN (1) | CN113678367A (ja) |
| DE (1) | DE112020000915T5 (ja) |
| WO (1) | WO2020217795A1 (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118907053A (zh) * | 2024-08-15 | 2024-11-08 | 东风越野车有限公司 | 一种电动液压制动助力模式的控制方法、装置及系统 |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7366248B2 (ja) * | 2020-04-22 | 2023-10-20 | 日立Astemo株式会社 | 電動ブレーキ装置 |
| JP7080280B2 (ja) * | 2020-07-27 | 2022-06-03 | 三菱電機株式会社 | 電動制動装置 |
| US20230001908A1 (en) * | 2021-07-02 | 2023-01-05 | Zf Active Safety Us Inc | Apparatus and method for redundant control of a hydraulic brake system |
| CN114771482A (zh) * | 2022-06-01 | 2022-07-22 | 上海英戈杰工程技术有限公司 | 一种液压与机械电控配合的底盘线控制动系统 |
| EP4307559A1 (en) | 2022-07-15 | 2024-01-17 | Sociéte Anonyme Belge de Constructions Aéronautiques, S.A.B.C.A. | Electromechanical actuator fail operational sensing system based on two angular sensors |
| DE102022123082A1 (de) * | 2022-09-12 | 2024-03-14 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Drehwinkelerfassungssystem für eine Drehwinkelerfassung eines rotatorischen Bremsantriebs für ein Schienenfahrzeug |
| CN116691632A (zh) * | 2023-06-19 | 2023-09-05 | 浙江吉利控股集团有限公司 | 电子机械制动系统、方法、设备及计算机存储介质 |
| WO2025000328A1 (zh) * | 2023-06-29 | 2025-01-02 | 广东逸动科技有限公司 | 控制方法、姿态调节装置、水域推进器及水域可移动设备 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001016887A (ja) * | 1999-06-22 | 2001-01-19 | Sulzer Markets & Technology Ag | 電気式回転駆動装置 |
| JP2002276704A (ja) * | 2001-03-15 | 2002-09-25 | Asmo Co Ltd | 車両用電動ブレーキ装置 |
| JP2003153401A (ja) * | 2001-11-07 | 2003-05-23 | Hitachi Ltd | 電気車の制御装置及び制御方法 |
| JP2009067264A (ja) * | 2007-09-14 | 2009-04-02 | Hitachi Ltd | 電動駐車ブレーキ装置 |
| JP2017017910A (ja) * | 2015-07-03 | 2017-01-19 | 日立オートモティブシステムズ株式会社 | 三相同期電動機の駆動装置 |
| WO2019031218A1 (ja) * | 2017-08-08 | 2019-02-14 | パナソニックIpマネジメント株式会社 | エンコーダの異常検出方法 |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61100439A (ja) | 1984-10-23 | 1986-05-19 | Sanyo Kokusaku Pulp Co Ltd | 製紙用エキスパンダ−ロ−ルへの熱収縮性弗素樹脂被覆方法 |
| JPS6340658U (ja) | 1986-09-02 | 1988-03-16 | ||
| JP5000893B2 (ja) * | 2005-01-27 | 2012-08-15 | 日立オートモティブシステムズ株式会社 | 電動ブレーキ制御装置及び電動ブレーキ制御方法 |
| JP2007045271A (ja) * | 2005-08-09 | 2007-02-22 | Hitachi Ltd | 電動ブレーキおよびその制御装置 |
| JP4803372B2 (ja) | 2006-06-30 | 2011-10-26 | 日立オートモティブシステムズ株式会社 | 電動ブレーキ装置及び電動ブレーキ装置の制御装置 |
| JP4997219B2 (ja) | 2008-12-17 | 2012-08-08 | 日立オートモティブシステムズ株式会社 | 制御装置 |
| CN103438920A (zh) * | 2013-08-23 | 2013-12-11 | 同济大学 | Bldc位置传感器的故障诊断方法、容错控制方法及其系统 |
| JP6340658B2 (ja) | 2013-10-28 | 2018-06-13 | 日立オートモティブシステムズ株式会社 | 異常診断装置及びそれを用いたシフトバイワイヤ装置 |
| JP6570877B2 (ja) | 2015-05-22 | 2019-09-04 | Ntn株式会社 | 電動ブレーキ装置 |
| JP6580502B2 (ja) | 2016-03-11 | 2019-09-25 | 日立オートモティブシステムズ株式会社 | 制御装置及び複数の演算処理装置における異常通知方法 |
| EP3451526B1 (en) * | 2016-04-28 | 2020-05-06 | Mitsubishi Electric Corporation | Failure determination device for rotating machine control device and failure determination method |
| US11084523B2 (en) | 2016-09-15 | 2021-08-10 | Hitachi Astemo, Ltd. | Vehicle-mounted device actuator and power steering device |
| JP6926504B2 (ja) | 2017-02-10 | 2021-08-25 | 株式会社デンソー | 回転検出装置 |
-
2019
- 2019-04-24 JP JP2019082606A patent/JP7242399B2/ja active Active
-
2020
- 2020-03-18 DE DE112020000915.7T patent/DE112020000915T5/de active Pending
- 2020-03-18 CN CN202080022908.6A patent/CN113678367A/zh active Pending
- 2020-03-18 WO PCT/JP2020/012137 patent/WO2020217795A1/ja not_active Ceased
- 2020-03-18 US US17/439,939 patent/US12233839B2/en active Active
- 2020-03-18 KR KR1020217029616A patent/KR102555204B1/ko active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001016887A (ja) * | 1999-06-22 | 2001-01-19 | Sulzer Markets & Technology Ag | 電気式回転駆動装置 |
| JP2002276704A (ja) * | 2001-03-15 | 2002-09-25 | Asmo Co Ltd | 車両用電動ブレーキ装置 |
| JP2003153401A (ja) * | 2001-11-07 | 2003-05-23 | Hitachi Ltd | 電気車の制御装置及び制御方法 |
| JP2009067264A (ja) * | 2007-09-14 | 2009-04-02 | Hitachi Ltd | 電動駐車ブレーキ装置 |
| JP2017017910A (ja) * | 2015-07-03 | 2017-01-19 | 日立オートモティブシステムズ株式会社 | 三相同期電動機の駆動装置 |
| WO2019031218A1 (ja) * | 2017-08-08 | 2019-02-14 | パナソニックIpマネジメント株式会社 | エンコーダの異常検出方法 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118907053A (zh) * | 2024-08-15 | 2024-11-08 | 东风越野车有限公司 | 一种电动液压制动助力模式的控制方法、装置及系统 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113678367A (zh) | 2021-11-19 |
| JP2020182275A (ja) | 2020-11-05 |
| US12233839B2 (en) | 2025-02-25 |
| JP7242399B2 (ja) | 2023-03-20 |
| KR102555204B1 (ko) | 2023-07-13 |
| DE112020000915T5 (de) | 2021-11-04 |
| KR20210126714A (ko) | 2021-10-20 |
| US20220185250A1 (en) | 2022-06-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7242399B2 (ja) | モータ制御装置及びこれを用いた電動ブレーキ装置、並びにモータ制御方法及びこの制御方法を用いた電動ブレーキ制御方法 | |
| US6969127B2 (en) | Electric parking brake system | |
| EP2444293B1 (en) | Vehicle creep control device | |
| US10501063B2 (en) | Brake-by-wire system | |
| US7376498B2 (en) | Vehicle controller | |
| US10081342B2 (en) | Systems and methods for brake actuator operation under load cell failure | |
| JP7741900B2 (ja) | 自動車用の電気機械式のブレーキシステム、方法 | |
| JP7741899B2 (ja) | 自動車用の電気機械式のブレーキシステムおよびこのブレーキシステム用の制御方法 | |
| CN110963025B (zh) | 飞行器制动系统架构 | |
| JP7741897B2 (ja) | 自動車用の電気機械式のブレーキシステム、方法 | |
| JP7005792B2 (ja) | 車両搭載機器の制御装置 | |
| CN119840583A (zh) | 用于机动车的制动系统 | |
| JP2021070431A (ja) | モータ駆動システム | |
| WO2012121007A1 (ja) | 電流制御装置 | |
| CN112238848B (zh) | 电动制动装置和车辆 | |
| JPWO2019003537A1 (ja) | 車両用ブレーキシステム | |
| US8421385B2 (en) | Method for braking an electromotor and electrical drive | |
| US20240039451A1 (en) | Motor control apparatus and motor control system | |
| JP4969662B2 (ja) | 車両制御装置 | |
| JP2004314687A (ja) | 電動駐車ブレーキシステム | |
| CN118525446A (zh) | 电机驱动装置和电机驱动方法 | |
| KR101708234B1 (ko) | 차량용 전기기계 브레이크 시스템 및 이의 동작방법 | |
| JP7829039B2 (ja) | モータ制御装置およびモータ制御システム | |
| JP2018050431A (ja) | 2軸型インバータ装置 | |
| JP6339144B2 (ja) | 2軸型インバータ装置およびその逐次監視切替方法 |
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: 20795947 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 20217029616 Country of ref document: KR Kind code of ref document: A |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 20795947 Country of ref document: EP Kind code of ref document: A1 |
|
| WWG | Wipo information: grant in national office |
Ref document number: 17439939 Country of ref document: US |