# US 2022/0032931 A1 · Control device

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- Number: US 2022/0032931 A1
- Document ID: US20220032931A1
- Status: Published application
- Kind: A1
- Application number: 17/505,009
- Filed: 2021-10-19
- Published: 2022-02-03
- Earliest claimed: 2016-12-14
- Assignees: Denso Corporation
- Applicants: Denso Corporation
- Inventors: Mitsuharu HIGASHITANI; Noriaki IKEMOTO; Tomomi HASE
- Web page: https://patentgrep.com/patent/US20220032931A1

## CPC

- B60W 50/04: Monitoring the functioning of the control system
- H02P 29/025: {the fault being a power interruption}
- B60L 7/10: Dynamic electric regenerative braking (B60L7/22 takes precedence)
- B60R 16/02: electric {constitutive elements}
- B60W 30/18: Propelling the vehicle
- B60W 30/18018: {Start-stop drive, e.g. in a traffic jam}
- B60W 30/18109: {Braking}
- H02P 9/04: Control effected upon non-electric prime mover and dependent upon electric output value of the generator
- H02P 9/08: Control of generator circuit during starting or stopping of driving means, e.g. for initiating excitation
- B60W 2050/007: {Switching between manual and automatic parameter input, and vice versa}
- B60W 2510/242: for electrical energy
- B60W 2510/244: Charge state
- B60W 2710/18: Braking system
- B60W 2710/20: Steering systems
- 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
- H02P: CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- 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
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

A control device of an automatic drive vehicle includes: an information acquisition unit that acquires power generator information as information on a power generator provided in the automatic drive vehicle; an operation control unit that switches between a first state in which automatic driving of the automatic drive vehicle is executed without restriction and a second state in which the automatic driving is partially or entirely restricted; and a determination unit that determines whether to perform switching to the second state by the operation control unit.

## Claims

### Claim 1

A method of controlling an automatic drive vehicle that includes:
at least one computer system;
a battery that supplies power to operate the at least one computer system; and
a temperature sensor configured to measure a temperature of the battery,
the method comprising the steps of:
the at least one computer system acquiring the temperature of the battery measured by the temperature sensor;
the at least one computer system determining whether to restrict automatic driving of the automatic drive vehicle; and
the at least one computer system switching one or more restrictions on the automatic driving based on the temperature of the battery.

### Claim 2 (depends on 1)

The method of controlling the automatic drive vehicle according to claim 1, wherein
when the one or more restrictions are to prevent the loss of power during the automatic driving, the automatic drive vehicle is automatically and safely operated by the power from the battery.

### Claim 3 (depends on 2)

The method of controlling the automatic drive vehicle according to claim 2, wherein
the one or more restrictions include restricting the running speed of the automatic driving.

### Claim 4 (depends on 3)

The method of controlling the automatic drive vehicle according to claim 3, wherein
an inter-terminal voltage of the battery is obtained by the at least one computer system, and
switching the one or more restrictions is performed when the inter-terminal voltage becomes lower than a predetermined value.

### Claim 5 (depends on 4)

The method of controlling the automatic drive vehicle according to claim 4, wherein
the one or more restrictions are imposed when the temperature of the battery exceeds a predetermined value.

### Claim 6 (depends on 5)

The method of controlling the automatic drive vehicle according to claim 5, wherein
when the battery is replaced, a part of information stored in a storage unit of the automatic drive vehicle is rewritten.

### Claim 7

An automatic drive vehicle comprising:
at least one computer system;
a battery configured to supply power to operate the at least one computer system; and
a temperature sensor configured to measure a temperature of the battery,
wherein the at least one computer system is configured to:
acquire the temperature of the battery measured by the temperature sensor;
determine whether to restrict automatic driving of the automatic drive vehicle; and
switch one or more restrictions on the automatic driving based on the temperature of the battery.

### Claim 8 (depends on 7)

The automatic drive vehicle according to claim 7, wherein the at least one computer system is configured to, when the one or more restrictions are to prevent the loss of power during the automatic driving, automatically and safely operate the automatic drive vehicle by the power from the battery.

### Claim 9 (depends on 8)

The automatic drive vehicle according to claim 8, wherein the one or more restrictions include restricting the running speed of the automatic driving.

### Claim 10 (depends on 9)

The automatic drive vehicle according to claim 9, wherein
the at least one computer system is configured to:
obtain an inter-terminal voltage of the battery;
determine whether the one or more restrictions should be switched when the inter-terminal voltage becomes lower than a predetermined value.

### Claim 11 (depends on 10)

The automatic drive wheel according to claim 10, wherein the one or more restrictions are imposed when the temperature of the battery exceeds a predetermined value.

### Claim 12 (depends on 11)

The automatic drive vehicle according to claim 11, wherein the automatic drive vehicle is configured such that when the battery is replaced, a part of information stored in a storage unit of the automatic drive vehicle is rewritten.
