# US 11,439,951 B2 · Control system for vehicle having CO2 capturing device

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- Number: US 11,439,951 B2
- Document ID: US11439951B2
- Status: Granted
- Kind: B2
- Application number: 16/994,815
- Filed: 2020-08-17
- Published: 2021-02-25
- Granted: 2022-09-13
- Earliest claimed: 2019-08-23
- Assignees: Toyota Jidosha Kabushiki Kaisha
- Applicants: Toyota Jidosha Kabushiki Kaisha
- Inventors: Kouseki Sugiyama; Jun Miyagawa; Daiki Yokoyama
- Web page: https://patentgrep.com/patent/US11439951B2

## CPC

- B01D 53/62: Carbon oxides
- B01D 53/92: of engine exhaust gases (exhaust {or silencing} apparatus {for internal combustion engines, machines or engines in general}, having means for purifying, {rendering innocuous} or otherwise treating exhaust gases F01N3/00)
- F01N 3/023: using means for regenerating the filters, e.g. by burning trapped particles
- F01N 3/0857: {Carbon oxides}
- F01N 3/0871: {using means for controlling, e.g. purging, the absorbents or adsorbents}
- F01N 3/24: characterised by constructional aspects of converting apparatus (filtering in combination with catalytic reactors F01N3/035)
- B01D 2257/504: Carbon dioxide
- F01N 2240/02: a heat exchanger
- F01N 2240/04: an electric, e.g. electrostatic, device other than a heater
- F01N 2240/18: an adsorber or absorber
- F01N 2240/26: an exhaust gas reservoir, e.g. emission buffer
- B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28)
- F01N: GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES (arrangements in connection with gas exhaust of propulsion units in vehicles B60K13/00; combustion-air intake silencers specially adapted for, or arranged on, internal-combustion engines F02M35/00; protecting against, or damping, noise in general G10K11/16)

## Abstract

A control system for a vehicle having a CO2 capturing device configured to capture CO2 certainly from gas streams. The CO2 captured by the CO2 capturing device is desorbed from the CO2 capturing device by an energy available in the vehicle. A controller is configured to discharge the CO2 captured by the CO2 capturing device into the recovery station by energy delivered from the recovery station to the CO2 capturing device when the energy available in the vehicle is less than a predetermined value.

## Claims

### Claim 1

A control system for a vehicle having a CO2 capturing device that captures CO2 from gas stream and discharges the captured CO2 to an external recovery station, comprising:
a controller that controls the vehicle,
wherein the controller is configured to
desorb the CO2 captured by the CO2 capturing device from the CO2 capturing device by an energy available in the vehicle so as to discharge the CO2 from the CO2 capturing device into the recovery station,
determine whether the energy available in the vehicle is less than a predetermined value,
deliver energy from the recovery station to the CO2 capturing device when the energy available in the vehicle is less than the predetermined value, and
discharge the CO2 captured by the CO2 capturing device into the recovery station by the energy delivered from the recovery station to the CO2 capturing device.

### Claim 2 (depends on 1)

The control system for the vehicle having the CO2 capturing device as claimed in claim 1,
wherein the vehicle comprises a heat accumulator, and
the energy available in the vehicle includes a thermal energy accumulated in the heat accumulator.

### Claim 3 (depends on 2)

The control system for the vehicle having the CO2 capturing device as claimed in claim 2, wherein the energy delivered from the recovery station to the CO2 capturing device includes a thermal energy.

### Claim 4 (depends on 2)

The control system for the vehicle having the CO2 capturing device as claimed in claim 2, wherein the controller is further configured to
desorb the CO2 from the CO2 capturing device by heating the CO2 capturing device by the thermal energy accumulated in the heat accumulator,
determine whether an amount of the thermal energy accumulated in the heat accumulator is less than the predetermined value, and
deliver the energy from the recovery station to the CO2 capturing device after the energy accumulated in the heat accumulator is reduced less than the predetermined value.

### Claim 5 (depends on 2)

The control system for the vehicle having the CO2 capturing device as claimed in claim 2, wherein the controller is further configured to
make a prediction about whether the CO2 capturing device will discharge the CO2 to the recovery station during propulsion of the vehicle, and
increase the amount of the thermal energy accumulated in the heat accumulator if the CO2 capturing device will discharge the CO2 to the recovery station during propulsion of the vehicle.

### Claim 6 (depends on 5)

The control system for the vehicle having the CO2 capturing device as claimed in claim 5,
wherein the prediction includes a prediction about whether a travel plan includes a plan to stop the vehicle at the recovery station, and
the controller is further configured to increase the amount of the thermal energy accumulated in the heat accumulator upon satisfaction of at least any one of conditions that a distance from a current position of the vehicle to the recovery station is shorter than a predetermined distance, and that an estimated time until the vehicle arrives at the recovery station is shorter than a predetermined time.

### Claim 7 (depends on 5)

The control system for the vehicle having the CO2 capturing device as claimed in claim 5,
wherein a prime mover of the vehicle includes at least an engine, and
the controller is further configured to increase the amount of the thermal energy accumulated in the heat accumulator by controlling at least any one of a speed of the engine, an ignition timing of the engine, and an air/fuel ratio of the engine.

### Claim 8 (depends on 5)

The control system for the vehicle having the CO2 capturing device as claimed in claim 5, wherein the controller is further configured to calculate a required amount of the thermal energy to discharge the CO2 from the CO2 capturing device into the recovery station.

### Claim 9 (depends on 8)

The control system for the vehicle having the CO2 capturing device as claimed in claim 8, wherein the controller is further configured to
create a travel plan possible to accumulate the thermal energy in the heat accumulator until the vehicle arrives at the recovery station, and
operate the vehicle in line with the travel plan.

### Claim 10 (depends on 1)

The control system for the vehicle having the CO2 capturing device as claimed in claim 1, wherein the controller is further configured to
offer an incentive to carry the captured CO2 to the recovery station, and
pay an incentive compensation in accordance with an amount of the CO2 discharged from the CO2 capturing device to the recovery station.

### Claim 11 (depends on 10)

The control system for the vehicle having the CO2 capturing device as claimed in claim 10, wherein the incentive compensation includes an incentive compensation calculated in accordance with an amount of the energy available in the vehicle supplied to the CO2 capturing device to discharge the CO2 from the CO2 capturing device into the recovery station.

### Claim 12 (depends on 1)

The control system for the vehicle having the CO2 capturing device as claimed in claim 1,
wherein the vehicle comprises an engine that serves as a prime mover and a particulate filter that traps particulate matter in an exhaust gas emitted from the engine, and
the controller is further configured to
regenerate the particulate filter when discharging the CO2 from the CO2 capturing device to the recovery station, and
desorb the CO2 from the CO2 capturing device by heat resulting from regenerating the particulate filter.

### Claim 13 (depends on 1)

The control system for the vehicle having the CO2 capturing device as claimed in claim 1, wherein the controller is further configured to desorb the CO2 from the CO2 capturing device by heating the CO2 capturing device, depressurizing the CO2 capturing device or sucking the CO2 capturing device.

### Claim 14 (depends on 1)

The control system for the vehicle having the CO2 capturing device as claimed in claim 1, wherein the energy available in the vehicle includes the thermal energy, an electric energy, and a pressure energy.
