# US 12,110,002 B2 · Method and system for hybrid vehicle power generation

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- Number: US 12,110,002 B2
- Document ID: US12110002B2
- Status: Granted
- Kind: B2
- Application number: 17/573,038
- Filed: 2022-01-11
- Published: 2023-07-13
- Granted: 2024-10-08
- Earliest claimed: 2022-01-11
- Assignees: Ford Global Technologies, LLC
- Applicants: Ford Global Technologies, LLC
- Inventors: Stephen Thomas Powell; Samuel Johnson; Garrett Carlson; Craig Lechlitner
- Web page: https://patentgrep.com/patent/US12110002B2

## CPC

- B60W 20/13: in order to stay within battery power input or output limits; in order to prevent overcharging or battery depletion
- B60L 1/006: {to power outlets}
- B60L 50/10: using propulsion power supplied by engine-driven generators, e.g. generators driven by combustion engines
- B60L 58/13: Maintaining the SoC within a determined range
- B60W 10/06: including control of combustion engines
- B60W 10/08: including control of electric propulsion units, e.g. motors or generators
- B60W 10/26: for electrical energy, e.g. batteries or capacitors
- B60W 20/17: for noise reduction
- B60W 30/18054: {at stand still, e.g. engine in idling state (hill holding B60W30/18118)}
- B60W 50/14: Means for informing the driver, warning the driver or prompting a driver intervention
- B60L 2240/662: Temperature
- B60W 2510/1005: Transmission ratio engaged
- B60W 2510/244: Charge state
- B60W 2520/04: Vehicle stop
- B60W 2555/20: Ambient conditions, e.g. wind or rain
- B60W 2710/244: Charge state
- B60W 2756/10: Involving external transmission of data to or from the vehicle
- Y02T 10/70: Energy storage systems for electromobility, e.g. batteries
- B60W: CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

Responsive to a user request, a controller operates an engine of a vehicle while parked to charge a traction battery to a target state of charge that exceeds a maximum state of charge limit, used during drive of the vehicle by an electric machine, in advance of a predefined period of time.

## Claims

### Claim 1

A vehicle comprising
an engine;
an electric machine;
a traction battery configured to provide power to the electric machine; and
a controller programmed to, while the vehicle is in PARK and before a predefined period of time during which engine starts will be prohibited, operate the engine to charge the traction battery to a target state of charge that exceeds a maximum state of charge limit permitted during drive of the vehicle by the electric machine.

### Claim 2 (depends on 1)

The vehicle of claim 1 further comprising a power outlet configured to convey power from the traction battery during the predefined period of time.

### Claim 3 (depends on 1)

The vehicle of claim 1 further comprising a power outlet, wherein the controller is further programmed to limit power flow from the traction battery to loads other than the power outlet during the predefined period of time.

### Claim 4 (depends on 1)

The vehicle of claim 1, wherein the controller is further programmed to inhibit starts of the engine during the predefined period of time.

### Claim 5 (depends on 1)

The vehicle of claim 1, wherein the controller is further programmed to, responsive to the state of charge falling below a floor value, generate a notification.

### Claim 6 (depends on 1)

The vehicle of claim 1 further comprising a power outlet configured to convey power from the traction battery during the predefined period of time, wherein the controller is further programmed to, responsive to the state of charge falling below a floor value, prevent power flow to the power outlet.

### Claim 7 (depends on 6)

The vehicle of claim 6, wherein the floor value is based on ambient temperature.

### Claim 8 (depends on 1)

The vehicle of claim 1, wherein the target state of charge is based on weather in a vicinity of the vehicle.

### Claim 9

A method comprising:
responsive to a vehicle being in PARK and before a predefined period of time during which engine starts will be prohibited, operating the engine to charge a traction battery of the vehicle to a target state of charge that exceeds a maximum state of charge limit permitted during drive of the vehicle by an electric machine.

### Claim 10 (depends on 9)

The method of claim 9 further comprising limiting power from the traction battery to loads other than a power outlet of the vehicle during the predefined period of time.

### Claim 11 (depends on 9)

The method of claim 9 further comprising inhibiting starts of the engine during the predefined period of time.

### Claim 12 (depends on 9)

The method of claim 9 further comprising generating a notification indicating the state of charge has fallen below a floor value.

### Claim 13 (depends on 9)

The method of claim 9 further comprising preventing power flow from the traction battery to a power outlet of the vehicle after the state of charge has fallen below a floor value.

### Claim 14 (depends on 13)

The method of claim 13, wherein the floor value is based on ambient temperature.

### Claim 15 (depends on 9)

The method of claim 9, wherein the target state of charge is based on weather in a vicinity of the vehicle.

### Claim 16

A power system for a vehicle comprising:
a traction battery;
a power outlet; and
a controller programmed to, while the vehicle is parked and before a predefined period of time during which engine starts will be prohibited, charge the traction battery to a target state of charge that exceeds a maximum state of charge permitted during drive of the vehicle and to permit power flow from the traction battery to the power outlet without starting the engine of the vehicle.

### Claim 17 (depends on 16)

The power system of claim 16, wherein the controller is further programmed to limit power flow from the traction battery to loads other than the power outlet.

### Claim 18 (depends on 16)

The power system of claim 16, wherein the controller is further programmed to prevent the power flow based on a state of charge of the traction battery.

### Claim 19 (depends on 16)

The power system of claim 16, wherein the target state of charge is based on weather in a vicinity of the vehicle.

### Claim 20 (depends on 16)

The power system of claim 16, further comprising a wireless transceiver programmed to communicate with a mobile device,
the controller is further programmed to responsive to the state of charge of the traction battery reaches a discharge threshold while the vehicle is parked, output a message to the mobile device.
