# US 9,434,273 B2 · Electrical source control apparatus

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 9,434,273 B2
- Document ID: US9434273B2
- Status: Granted
- Kind: B2
- Application number: 14/778,794
- Filed: 2014-03-19
- Published: 2016-02-11
- Granted: 2016-09-06
- Earliest claimed: 2013-03-22
- Assignees: Toyota Jidosha Kabushiki Kaisha
- Applicants: Toyota Jidosha Kabushiki Kaisha
- Inventors: Masaki Okamura; Naoyoshi Takamatsu; Takaji Umeno; Shuji Tomura; Masanori Ishigaki; Naoki Yanagizawa
- Web page: https://patentgrep.com/patent/US9434273B2

## CPC

- B60L 7/14: for vehicles propelled by AC motors
- B60L 3/0046: {relating to electric energy storage systems, e.g. batteries or capacitors}
- B60L 7/18: Controlling the braking effect (B60L7/12, B60L7/14, B60L7/16 take precedence)
- B60L 50/40: using propulsion power supplied by capacitors
- B60L 50/51: characterised by AC-motors
- B60L 58/20: having different nominal voltages
- B60W 20/13: in order to stay within battery power input or output limits; in order to prevent overcharging or battery depletion
- H02J 7/00: Circuit arrangements for charging or discharging batteries or for supplying loads from batteries
- H02J 7/933: {the cycle being controlled or terminated in response to electric parameters}
- B60L 2210/10: DC to DC converters
- B60L 2240/12: Speed
- B60L 2240/525: Temperature of converter or components thereof
- B60L 2240/545: Temperature
- B60L 2240/547: Voltage
- B60L 2240/549: Current
- H02J 2105/37: exchanging power with electric vehicles [EV] or with hybrid electric vehicles [HEV]
- H02J 2207/20: Charging or discharging characterised by the power electronics converter
- Y02T 10/70: Energy storage systems for electromobility, e.g. batteries
- Y02T 10/72: Electric energy management in electromobility
- Y10S 903/907: Electricity storage, e.g. battery, capacitor
- 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
- 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
- H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

## Abstract

An electrical source control apparatus controls a vehicle traveling by using a source system including a first source performing input/output of first power and a second source performing input/output of second power, capacity of the second source is smaller than that of the first source and output of the second source is larger than that of the first source. The apparatus has a controller programmed to select a first driving mode which prioritizes a fuel efficiency over a driving performance and a second driving mode which prioritizes the driving performance over the fuel efficiency based on a characteristic required for the vehicle from driving modes having different ratios of the first power with respect to a required power required for the source system, and control the first and second sources such that the input/output of the first power is performed in accordance with the ratio of the selected driving mode.

## Claims

### Claim 1

An electrical source control apparatus for controlling a vehicle which travels by using an electrical source system including both of first and second electrical sources,
the first electrical source performing an input/output of a first electrical power,
the second electrical source performing an input/output of a second electrical power, a capacity of the second electrical source being smaller than that of the first electrical source and an output of the second electrical source being larger than that of the first electrical source,
the electrical source control apparatus comprising a controller,
the controller being programmed to:
select a first driving mode which prioritizes a fuel efficiency over a driving performance and a second driving mode which prioritizes the driving performance over the fuel efficiency on the basis of a characteristic which is required for the vehicle from a plurality of driving modes, each driving mode being associated with a ratio of the first electrical power with respect to a required electrical power which is required for the electrical source system, the ratios in the plurality of driving modes being different from each other; and
control the first and second electrical sources such that the input/output of the first and second electrical powers are performed in accordance with the ratio of the selected first or second driving mode.

### Claim 2 (depends on 1)

The electrical source control apparatus according to claim 1, wherein
the first driving mode is a driving mode in which the ratio of the first electrical power is less than a first threshold value and the second driving mode is a driving mode in which the ratio of the first electrical power is more than the first threshold value.

### Claim 3 (depends on 1)

The electrical source control apparatus according to claim 1 wherein
the first driving mode is a driving mode in which the ratio of the first electrical power is less than a ratio of the second electrical power with respect to the required electrical power and the second driving mode is a driving mode in which the ratio of the first electrical power is more than the ratio of the second electrical power.

### Claim 4 (depends on 1)

The electrical source control apparatus according to claim 1, wherein
the controller is programmed to select the first driving mode, when the characteristic which is required for the vehicle is a characteristic which prioritizes the fuel efficiency over the driving performance,
the controller is programmed to select the second driving mode, when the characteristic which is required for the vehicle is a characteristic which prioritizes the driving performance over the fuel efficiency.

### Claim 5 (depends on 4)

The electrical source control apparatus according to claim 4, wherein
the controller is programmed not to select the second driving mode, when a difference between a current value of the characteristic of at least one of the first and second electrical sources and a rated limit value of at least one of the first and second electrical sources is less than a second threshold value, even when the characteristic which is required for the vehicle is the characteristic which prioritizes the driving performance over the fuel efficiency.

### Claim 6 (depends on 1)

The electrical source control apparatus according to claim 1, wherein
the controller is programmed to adjust the ratio of the first electrical power on the basis of a difference between a current value of the characteristic of at least one of the first and second electrical sources and a rated limit value of at least one of the first and second electrical sources.

### Claim 7 (depends on 6)

The electrical source control apparatus according to claim 6, wherein
the controller is programmed to decrease the ratio of the first electrical power more as the difference between the current value of the characteristic of the first electrical source and the rated limit value of the first electrical source becomes smaller.

### Claim 8 (depends on 6)

The electrical source control apparatus according to claim 6, wherein
the controller is programmed to increase the ratio of the first electrical power more as the difference between the current value of the characteristic of the second electrical source and the rated limit value of the second electrical source becomes smaller.

### Claim 9

An electrical source control apparatus for controlling a vehicle which travels by using an electrical source system including both of first and second electrical sources,
the first electrical source performing an input/output of a first electrical power,
the second electrical source performing an input/output of a second electrical power, a capacity of the second electrical source being smaller than that of the first electrical source and an output of the second electrical source being larger than that of the first electrical source,
the electrical source control apparatus comprising a controller
the controller being programmed to:
dynamically adjust a ratio of the first electrical power with respect to a required electrical power which is required for the electrical source system on the basis of a characteristic which is required for the vehicle such that the adjusted ratio of the first electrical power is a first ratio which prioritizes a fuel efficiency over a driving performance and a second ratio which prioritizes the driving performance over the fuel efficiency; and
control the first and second electrical sources such that the input/output of the first and second electrical powers are performed in accordance with the adjusted ratio.

### Claim 10 (depends on 9)

The electrical source control apparatus according to claim 9, wherein
the controller is programmed to (i) adjust the ratio of the first electrical power such that the ratio of the first electrical power is the first ratio which is less than a first threshold value, when the characteristic which is required for the vehicle is a characteristic which prioritizes the fuel efficiency over the driving performance, and (ii) adjust the ratio of the first electrical power such that the ratio of the first electrical power is the second ratio which is more than the first threshold value, when the characteristic which is required for the vehicle is a characteristic which prioritizes the driving performance over the fuel efficiency.

### Claim 11 (depends on 9)

The electrical source control apparatus according to claim 9, wherein
the controller is programmed to (i) adjust the ratio of the first electrical power such that the ratio of the first electrical power is the first ratio which is less than a ratio of the second electrical power with respect to the required electrical power, when the characteristic which is required for the vehicle is a characteristic which prioritizes the fuel efficiency over the driving performance, and (ii) adjust the ratio of the first electrical power such that the ratio of the first electrical power is the second ratio which is more than the ratio of the second electrical power, when the characteristic which is required for the vehicle is a characteristic which prioritizes the driving performance over the fuel efficiency.

### Claim 12 (depends on 10)

The electrical source control apparatus according to claim 10, wherein
the controller is programmed not to adjust the ratio of the first electrical power such that the ratio of the first electrical power is the second ratio which is more than the first threshold value, when a difference between a current value of the characteristic of at least one of the first and second electrical sources and a rated limit value of at least one of the first and second electrical sources is less than a second threshold value, even when the characteristic which is required for the vehicle is the characteristic which prioritizes the driving performance over the fuel efficiency.

### Claim 13 (depends on 11)

The electrical source control apparatus according to claim 11, wherein
the controller is programmed not to adjust the ratio of the first electrical power such that the ratio of the first electrical power is the second ratio which is more than the ratio of the second electrical power, when a difference between a current value of the characteristic of at least one of the first and second electrical sources and a rated limit value of at least one of the first and second electrical sources is less than a second threshold value, even when the characteristic which is required for the vehicle is the characteristic which prioritizes the driving performance over the fuel efficiency.

### Claim 14 (depends on 9)

The electrical source control apparatus according to claim 9, wherein
the controller is programmed to further adjust the ratio of the first electrical power on the basis of a difference between a current value of the characteristic of at least one of the first and second electrical sources and a rated limit value of at least one of the first and second electrical sources.

### Claim 15 (depends on 14)

The electrical source control apparatus according to claim 14, wherein
the controller is programmed to decrease the ratio of the first electrical power more as the difference between the current value of the characteristic of the first electrical source and the rated limit value of the first electrical source becomes smaller.

### Claim 16 (depends on 14)

The electrical source control apparatus according to claim 14, wherein
the controller is programmed to increase the ratio of the first electrical power more as the difference between the current value of the characteristic of the second electrical source and the rated limit value of the second electrical source becomes smaller.