# US 2014/0152200 A1 · Portable service controller for electro-mechanical actuators

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- Number: US 2014/0152200 A1
- Document ID: US20140152200A1
- Status: Published application
- Kind: A1
- Application number: 13/690,400
- Filed: 2012-11-30
- Published: 2014-06-05
- Earliest claimed: 2012-11-30
- Assignees: Goodrich Corporation
- Inventors: Harald Klode; Albert K. Pant
- Web page: https://patentgrep.com/patent/US20140152200A1

## CPC

- H02P 23/0004: {Control strategies in general, e.g. linear type, e.g. P, PI, PID, using robust control}
- B64F 5/60: Testing or inspecting aircraft components or systems
- H02P 25/024: controlled by supply frequency
- H02P 25/16: characterised by the circuit arrangement or by the kind of wiring
- H02P 27/085: {wherein the PWM mode is adapted on the running conditions of the motor, e.g. the switching frequency}
- H02P: CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- B64F: GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR

## Abstract

A portable service controller for controlling an electro-mechanical actuator, the portable service controller includes a battery configured to power the portable service controller and a user interface configured to receive input from a user and to responsively generate an input signal. The portable service controller also includes a phase sequencer configured to convert the input signal into a series of timed output signals and a driver circuit configured to convert the series of timed output signals into inverter gating signals. The portable service controller further includes a three-phase brushless motor inverter configured to convert inverter gating signals into control signals for a brushless motor of the electro-mechanical actuator. The portable service controller contains a motor brake on/off circuitry for engaging and disengaging the electro-mechanical actuator motor brake. The battery, the three-phase brushless motor inverter, the driver circuit, the phase sequencer and the user interface are all disposed in a housing.

## Claims

### Claim 1

A portable service controller for controlling an electro-mechanical actuator, the portable service controller comprising:
a battery configured to power the portable service controller;
a user interface configured to receive input from a user and to responsively generate an input signal;
a phase sequencer configured to convert the input signal into a series of timed output signals;
a driver circuit configured to convert the series of timed output signals into inverter gating signals; and
a three-phase brushless motor inverter configured to convert inverter gating signals into control signals for a brushless motor of the electro-mechanical actuator;
wherein the battery, the three-phase brushless motor inverter, the driver circuit, the phase sequencer and the user interface are all disposed in a housing.

### Claim 2 (depends on 1)

The portable service controller of claim 1, wherein the phase sequencer comprises a phase sequencing table that is used to convert the operator inputs into the timed output signals.

### Claim 3 (depends on 1)

The portable service controller of claim 1, wherein the three-phase brushless motor inverter comprises a plurality of MOSFETs.

### Claim 4 (depends on 1)

The portable service controller of claim 1, wherein the user interface includes an on/off control, a rotation speed control, a rotation direction control and motor brake on/off control.

### Claim 5 (depends on 1)

The portable service controller of claim 1, further comprising an on off switch disposed in the housing.

### Claim 6 (depends on 1)

The portable service controller of claim 1, wherein the battery is a low-voltage battery that is suitable to power the portable service controller and the electro-mechanical actuator.

### Claim 7 (depends on 1)

The portable service controller of claim 1, wherein the housing is a portable and the portable service controller is a hand held device.

### Claim 8

A portable service controller comprising:
a user interface configured to receive input from a user and to responsively generate a input signal;
a phase sequencer configured to convert the input signal into a series of timed output signals based on a phase sequencing table;
a driver circuit configured to convert the series of timed output signals into inverter gating signals;
a three-phase brushless motor inverter configured to convert inverter gating signals into control signals suitable for controlling a brushless motor;
wherein the three-phase brushless motor inverter, the driver circuit, the phase sequencer and the user interface are all disposed in a housing.

### Claim 9 (depends on 8)

The portable service controller of claim 8, wherein the phase sequencer comprises a phase sequencing table that is used to convert the operator inputs into the timed output signals.

### Claim 10 (depends on 8)

The portable service controller of claim 8, wherein the three-phase brushless motor inverter comprises a plurality of MOSFETs.

### Claim 11 (depends on 8)

The portable service controller of claim 8, wherein the user interface includes an on/off control, a rotation speed control, a rotation direction control and motor brake on/off control.