# US 10,870,333 B2 · Reconfigurable utility power input with passive voltage booster

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- Number: US 10,870,333 B2
- Document ID: US10870333B2
- Status: Granted
- Kind: B2
- Application number: 16/176,602
- Filed: 2018-10-31
- Published: 2020-04-30
- Granted: 2020-12-22
- Earliest claimed: 2018-10-31
- Assignees: Thermo King Corporation
- Applicants: Thermo King Corporation
- Inventors: Ryan Wayne Schumacher; Marcelo Andrade Dias; Esteban Canade Tarquini
- Web page: https://patentgrep.com/patent/US10870333B2

## CPC

- B60H 1/3205: {Control means therefor}
- B60H 1/00428: {electric}
- H02M 7/12: using discharge tubes with control electrode or semiconductor devices with control electrode
- B60H 1/3232: {particularly adapted for load transporting vehicles (B60H1/3226 takes precedence)}
- B60P 3/20: Refrigerated goods vehicles (air treatment of goods space B60H; {air-conditioning means for freight cars, isothermic wagons B61D27/0027; superstructures for refrigerated goods vehicles B62D33/048})
- Y02T 10/88: Optimized components or subsystems, e.g. lighting, actively controlled glasses
- B60H: ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- H02M: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF (transformers H01F; dynamo-electric converters H02K47/00; controlling transformers, reactors or choke coils, control or regulation of electric motors, generators or dynamo-electric converters H02P)
- B60P: VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS (vehicles with special provisions for transporting patients or disabled persons, or their personal conveyances A61G3/00)
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

Methods and systems for reconfigurable utility power with passive voltage booster for a transport climate control system are provided. The transport climate control system includes a passive boost circuit. The system also includes a controller configured to determine whether the passive boost circuit is connected to one of a first utility power and a second utility power. The controller instructs the passive boost circuit to operate in a first configuration when the passive boost circuit is connected to the first utility power and instructs the passive boost circuit to operate in a second configuration when the passive boost circuit is connected to the second utility power. The system further includes a load such as a motor. The load can drive a device such as a compressor, a fan, etc. The load is connected to the passive boost circuit and configured to receive power from the passive boost circuit.

## Claims

### Claim 1

A transport climate control system, comprising:
a passive boost circuit;
a controller configured to determine whether the passive boost circuit is connected to one of a first utility power and a second utility power, the controller instructing the passive boost circuit to operate in a first configuration when the passive boost circuit is connected to the first utility power and instructing the passive boost circuit to operate in a second configuration when the passive boost circuit is connected to the second utility power; and
a motor driving a component of the transport climate control system, the motor being connected to the passive boost circuit and configured to receive power from the passive boost circuit,
when the passive boost circuit is connected to the first utility power, the passive boost circuit is configured to drive the motor using a first voltage from the first utility power,
when the passive boost circuit is connected to the second utility power, the passive boost circuit is configured to boost a second voltage from the second utility power, and drive the motor using the boosted voltage,
wherein the first voltage is greater than the second voltage,
wherein the motor has a back electromotive force incompatible with the second voltage,
wherein the controller is configured to determine a working voltage of the motor, the working voltage is greater than the second voltage,
wherein the controller is configured to control the motor to provide temperature control within a space of the transport climate control system.

### Claim 2 (depends on 1)

The system of claim 1, wherein the first voltage equals to two times the second voltage.

### Claim 3 (depends on 1)

The system of claim 1, wherein the passive boost circuit includes a voltage doubler portion, the voltage doubler portion is configured to boost the second voltage when the passive boost circuit is connected to the second utility power.

### Claim 4 (depends on 1)

The system of claim 1, wherein the passive boost circuit includes a switch, and
wherein when the passive boost circuit is connected to the first utility power, the controller is configured to turn off the switch so that the first voltage is used to drive the motor.

### Claim 5 (depends on 1)

The system of claim 1, wherein the passive boost circuit includes a switch, and
wherein when the passive boost circuit is connected to the second utility power, the controller is configured to turn on the switch so that the second voltage is boosted and the boosted voltage is used to drive the motor.

### Claim 6 (depends on 1)

The system of claim 1, wherein the passive boost circuit has an input voltage and an output voltage, and
wherein when the passive boost circuit is connected to the first utility power, the input voltage is the first voltage and the output voltage is a rectified voltage of the first voltage, and the output voltage is used to drive the motor.

### Claim 7 (depends on 1)

The system of claim 1, wherein the passive boost circuit has an input voltage and an output voltage, and
wherein when the passive boost circuit is connected to the second utility power, the input voltage is the second voltage and the output voltage is a rectified voltage of the boosted voltage, and the output voltage is used to drive the motor.

### Claim 8 (depends on 7)

The system of claim 7, wherein the rectified voltage of the boosted voltage is equal to a rectified voltage of the first voltage.

### Claim 9

A method for managing multiple utility power supplies for a transport climate control system, the method comprising:
a controller determining whether a passive boost circuit is connected to one of a first utility power and a second utility power;
the controller instructing the passive boost circuit to operate in a first configuration when the passive boost circuit is connected to the first utility power and instructing the passive boost circuit to operate in a second configuration when the passive boost circuit is connected to the second utility power;
the passive boost circuit driving a motor using a first voltage from the first utility power when the passive boost circuit is connected to the first utility power, the motor driving a component of the transport climate control system;
when the passive boost circuit is connected to the second utility power, the passive boost circuit boosting a second voltage from the second utility power and driving the motor using the boosted voltage,
the controller determining a working voltage of the motor, the working voltage being greater than the second voltage;
the controller controlling the motor to provide temperature control within a space of the transport climate control system;
wherein the first voltage is greater than the second voltage,
wherein the motor has a back electromotive force incompatible with the second voltage.

### Claim 10 (depends on 9)

The method of claim 9, wherein the first voltage equals to two times the second voltage.

### Claim 11 (depends on 9)

The method of claim 9, wherein the passive boost circuit includes a voltage doubler portion, the voltage doubler portion boosting the second voltage when the controller determines that the passive boost circuit is connected to the second utility power.

### Claim 12 (depends on 9)

The method of claim 9, wherein the passive boost circuit includes a switch, the method further comprising:
when the passive boost circuit is connected to the first utility power, the controller turning off the switch so that the first voltage is used to drive the motor.

### Claim 13 (depends on 9)

The method of claim 9, wherein the passive boost circuit includes a switch, the method further comprising:
when the passive boost circuit is connected to the second utility power, the controller turning on the switch so that the second voltage is boosted and the boosted voltage is used to drive the motor.

### Claim 14 (depends on 9)

The method of claim 9, wherein the passive boost circuit has an input voltage and an output voltage, the method further comprising:
when the passive boost circuit is connected to the first utility power, the output voltage being used to drive the motor, wherein the input voltage is the first voltage and the output voltage is a rectified voltage of the first voltage.

### Claim 15 (depends on 9)

The method of claim 9, wherein the passive boost circuit has an input voltage and an output voltage, the method further comprising:
when the passive boost circuit is connected to the second utility power, the output voltage being used to drive the motor, wherein the input voltage is the second voltage and the output voltage is a rectified voltage of the boosted voltage.

### Claim 16 (depends on 1)

The system of claim 1, wherein
the component is a compressor, the compressor has an operational curve defining an operation boundary of the compressor, and
when an input voltage of the compressor increases, the compressor is configured to operate with increased speed or torque.

### Claim 17 (depends on 1)

The system of claim 1, wherein the passive boost circuit includes a capacitor having a high capacitance, and an output current from the passive boost circuit is lower than an output current from the second utility power.

### Claim 18 (depends on 1)

The system of claim 1, wherein when the working voltage of the motor is greater than the boosted voltage, the controller is configured to issue an alert or to instruct the transport climate control system to disconnect from the second power source.

### Claim 19 (depends on 1)

The system of claim 1, wherein when the first voltage or the boosted voltage exceeds or is below a threshold the working voltage of the motor, the controller is configured to always boost the second voltage, boost the second voltage for a predetermined period of time, or to instruct the transport climate control system to disconnect from the first power source or the second power source.

### Claim 20 (depends on 1)

The system of claim 1, wherein the component is a compressor or a fan of the transport climate control system.
