# US 11,309,813 B2 · Opening/closing body drive device and control method thereof

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- Number: US 11,309,813 B2
- Document ID: US11309813B2
- Status: Granted
- Kind: B2
- Application number: 17/029,397
- Filed: 2020-09-23
- Published: 2021-04-01
- Granted: 2022-04-19
- Earliest claimed: 2019-09-27
- Assignees: Aisin Corporation
- Applicants: Aisin Corporation
- Inventors: Noriyuki Kamiya; Taishi IIkawa
- Web page: https://patentgrep.com/patent/US11309813B2

## CPC

- H02P 3/12: by short-circuit or resistive braking
- H02P 7/04: {by means of a H-bridge circuit}
- E05F 15/611: for swinging wings
- E05F 15/622: using screw-and-nut mechanisms
- G01R 19/16538: {in AC or DC supplies (G01R19/16519 and G01R19/16528 take precedence)}
- H02P 3/14: by regenerative braking
- H02P 7/285: controlling armature supply only
- H03K 17/08122: {in field-effect transistor switches}
- E05Y 2201/434: Electromotors; Details thereof
- E05Y 2400/302: during electric motor braking
- E05Y 2400/36: Speed control, detection or monitoring
- E05Y 2400/45: Control modes
- E05Y 2900/531: Doors
- E05Y 2900/546: Tailboards, tailgates or sideboards opening upwards
- E05Y 2900/548: Trunk lids
- G01R 19/16547: {voltage or current in AC supplies (switching for protection H02H; circuits for emergency power supply H02J9/00)}
- H02P: CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- E05F: DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12)
- H03K: PULSE TECHNIQUE (measuring pulse characteristics G01R; modulating sinusoidal oscillations with pulses H03C; transmission of digital information H04L; discriminator circuits detecting phase difference between two signals by counting or integrating cycles of oscillation H03D3/04; automatic control, starting, synchronisation or stabilisation of generators of electronic oscillations or pulses where the type of generator is irrelevant or unspecified H03L; coding, decoding or code conversion, in general H03M)
- E05Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF

## Abstract

An opening/closing body drive device includes: a motor which opens or closes an opening/closing body; a drive unit which rotates the motor; and a control unit which controls the drive unit. The drive unit includes first and second integrated circuits having first and second switching elements and third and fourth switching elements which are connected to each other in series with respect to a power source and connection points of which are connected to one and the other terminals of the motor, respectively. The control unit turn-on drives only the second switching element when braking the motor during the forward rotation and turn-on drives only the fourth switching element when braking the motor during the reverse rotation, or turn-on drives only the third switching element when braking the motor during the forward rotation and turn-on drives only the first switching element when braking the motor during the reverse rotation.

## Claims

### Claim 1

An opening/closing body drive device comprising:
a motor which opens or closes an opening/closing body;
a drive unit which rotates the motor; and
a control unit which controls the drive unit, wherein
the drive unit includes
a first integrated circuit having first and second switching elements which are connected to each other in series with respect to a positive electrode side and a negative electrode side of a power source and a connection point of which is connected to one terminal of the motor, and
a second integrated circuit having third and fourth switching elements which are connected to each other in series with respect to the positive electrode side and the negative electrode side and a connection point of which is connected to the other terminal of the motor,
first to fourth freewheeling diodes are incorporated in or attached in parallel to the first to fourth switching elements,
the control unit turn-on drives the first and fourth switching elements when driving the motor to be rotated forward and turn-on drives the second and third switching elements when driving the motor to be rotated reversely,
the control unit turn-on drives only the second switching element of the first to fourth switching elements when braking the motor during the forward rotation of the motor and turn-on drives only the fourth switching element of the first to fourth switching elements when braking the motor during the reverse rotation of the motor, or the control unit turn-on drives only the third switching element of the first to fourth switching elements when braking the motor during the forward rotation of the motor and turn-on drives only the first switching element of the first to fourth switching elements when braking the motor during the reverse rotation of the motor,
the first integrated circuit has a first protection function of, when an overcurrent of the first switching element is detected during the turn-on driving of the first switching element, switching the turn-on driving of the first switching element to the turn-on driving of the second switching element, and when an overcurrent of the second switching element is detected during the turn-on driving of the second switching element, switching the turn-on driving of the second switching element to the turn-on driving of the first switching element, and
the second integrated circuit has a second protection function of, when an overcurrent of the third switching element is detected during the turn-on driving of the third switching element, switching the turn-on driving of the third switching element to the turn-on driving of the fourth switching element, and when an overcurrent of the fourth switching element is detected during the turn-on driving of the fourth switching element, switching the turn-on driving of the fourth switching element to the turn-on driving of the third switching element.

### Claim 2

A control method of an opening/closing body drive device including
a motor which opens or closes an opening/closing body, and
a drive unit which rotates the motor,
in which the drive unit includes a first integrated circuit having first and second switching elements which are connected to each other in series with respect to a positive electrode side and a negative electrode side of a power source and a connection point of which is connected to one terminal of the motor, and a second integrated circuit having third and fourth switching elements which are connected to each other in series with respect to the positive electrode side and the negative electrode side and a connection point of which is connected to the other terminal of the motor, and
in which first to fourth freewheeling diodes are incorporated in or attached in parallel to the first to fourth switching elements,
the method comprising:
turn-on driving the first and fourth switching elements when driving the motor to be rotated forward and turn-on driving the second and third switching elements when driving the motor to be rotated reversely; and
turn-on driving only the second switching element of the first to fourth switching elements when braking the motor during the forward rotation of the motor and turn-on driving only the fourth switching element of the first to fourth switching elements when braking the motor during the reverse rotation of the motor, or turn-on driving only the third switching element of the first to fourth switching elements when braking the motor during the forward rotation of the motor and turn-on driving only the first switching element of the first to fourth switching elements when braking the motor during the reverse rotation of the motor, wherein
the first integrated circuit has a first protection function of, when an overcurrent of the first switching element is detected during the turn-on driving of the first switching element, switching the turn-on driving of the first switching element to the turn-on driving of the second switching element, and when an overcurrent of the second switching element is detected during the turn-on driving of the second switching element, switching the turn-on driving of the second switching element to the turn-on driving of the first switching element, and
the second integrated circuit has a second protection function of, when an overcurrent of the third switching element is detected during the turn-on driving of the third switching element, switching the turn-on driving of the third switching element to the turn-on driving of the fourth switching element, and when an overcurrent of the fourth switching element is detected during the turn-on driving of the fourth switching element, switching the turn-on driving of the fourth switching element to the turn-on driving of the third switching element.