Car Electronics Technology to Help Promote
the Use of a Vehicle as a Power Source

Fan100W

Industrial
refrigerator
700W

Dust-/fireproof shutter
1.5kW

Air conditioner
2.2kW

Refrigerator
300W

Water-supply
pump
10kW

global market
share of45%■ Shipment Volume of DC-AC Inverters (60W to 1.5kW)

Industrial vacuum cleaner
Water pump
3.7kW
5kW

100V appliances
Electric kettle
1.3kW

Charging
mobileRice cooker
phones
1.1kW
30W
Television 300W

No. 1

*2: Survey by Toyota Industries Corporation

Multilevelcar park
4kW

Heat pump
3.2kW

Industrial rice cooker
2.7kW

1.5kWElevator
5kW

Built-in electriccooking stove
5kWPower consumption

5Accumulated totalof 29 million units

2520

315210154WD rear inverter
mounted in the Prius

On-board charger
mounted in thePrius PHV

DC-DC converter
mounted in the Prius0(FY) 01

06

1116

Accumulated total

19
Annual shipment

Sub-stand Main control standCharging stand for
PHVs and EVs

Note: On June 18, 2019, accumulated production exceeded 30 million units.

The Car Electronics Business Satisfying Car
Electrification Need at a Higher Level
The beginning of Toyota Industries’ Electronics Businessdates back to the 1960s when we started the development
and production of inverters, controllers and other electronics
products for the Lift Truck Business, in which the need forelectrification was already rising. The power electronics
and power semiconductor technologies, which we haveaugmented through the development of electric lift trucks,

26

Toyota Industries Report 2019

Jun Kumeno

General Manager, Business Planning
Department, Electronics Division(As of March 31, 2019)

have been utilized in the subsequent development of
automobile-use products.
Vehicle-mounted products must offer the levels ofquality and durability necessary to properly function over awide range from low to high temperatures and under harshusage conditions involving vibrations, rainwater and dust.
We work to ensure the required performance by leveraging

Financial Section /Corporate Information*1: Survey by Toyota Industries Corporation

30

40Besides DC-AC inverters, Toyota Industries develops
and produces a range of electronics products. These
include DC-DC converters that convert the high voltage ofvehicle batteries into a lower voltage level to feed power tosuch devices as wipers and lights; rear inverters to provide
a 4WD option for electrified vehicles; and on-board chargers
and charging stands for PHVs and EVs. These products
satisfy varying needs related to the electrified vehicles ofautomakers around the world, including Toyota Motor
Corporation (TMC).

Promotion of ESG Initiatives

A high-capacity battery is used to operate an electrified
vehicle, and it has been attracting a great deal of publicattention for its additional use as a power source.
In 1995, Toyota Industries rolled out an on-board DC-AC
inverter that converts DC from the vehicle-mounted battery
into 100V AC. This was the first DC-AC inverter in the world
to be mounted at the time of vehicle assembly*1.
In 2001, we released another model for HVs and otherelectrified vehicles with a maximum output of 1.5kW,
which allows the use of a broader range of home electric
appliances from electric cooking tools to refrigerators andtelevisions.

200V appliances

Accumulated total (million units)

DC-AC Inverters Enabling Outdoor
Use of Various Home Electric Appliances

our strengths cultivated through the development of various
key components for automobiles. We also utilize our knowhow from the vehicle assembly business to create products
optimally designed for mounting in vehicles.
Building on these strengths, we have developed DCAC inverters with improved resistance against heat andvibrations and a better ability to shield electromagnetic
noise. Since launching the first product, we have maintained
the world’s No. 1 market share*2.

Strategies and Businesses

Car electrification is progressing in line with the enforcement of more stringent environmental
regulations worldwide and higher environmental consciousness among customers, asevidenced by the widespread use of hybrid vehicles (HV), plug-in hybrid vehicles (PHV),
electric vehicles (EV) and fuel cell vehicles (FCV). This Special Feature presents some of ourpower source devices that utilize the power source functionality of electrified vehicles to bringconvenience, joy and a sense of security to customers.

Company Introduction

Evacuation shelter without power(2018 Hokkaido Eastern Iburi Earthquake)© K.K. Kyodo News/amana images

Annual shipment (million units/year)

SpecialFeature
2Expanding Applications of Power Source Technologies
DC-AC inverters, which had mainly been used in outdoor
recreational activities, have drawn much public recognition as
an emergency power source after the 2011 Great East Japan
Earthquake. Back then, electrified vehicles were used as apower source to charge mobile phones and supply power for
lighting and heating at evacuation shelters and homes.
Toyota Industries has since stepped up its development
efforts so that our technologies and know-how can help

people during a disaster and at various
other occasions. At the same time, we have proactively
engaged in discussion with universities, government agencies
and other companies as an effort to promote the use of avehicle as a power source in a variety of applications.
In the following sections, we provide three examples ofproduct development initiatives utilizing our power sourcetechnologies.

27

特集 2

Drill at Toyota Industries for cooking andserving meals in a disaster

Initiative 1

Elevator

Single-phase (AC 100V, 1.5kW)
Threephase
three-wire(AC 200V,9kW)

1.5kW

1.5kW

1.5kW

1.5kW

V2H
Initiative 2

Toyota Industries develops and sells charging stands forPHVs and EVs. By applying the technology used in theseproducts to bridge an external power source and a vehicle,
we have developed a vehicle-to-home (V2H) system*3 toachieve a two-way power supply. The system accumulatesa surplus of electricity generated by home solar panels
or lower-priced nighttime electricity in a vehicle and feeds
it back to a household when necessary. It can optimize
household power consumption or serve as an emergency
power source in a disaster. We are also developing
a solution that can be linked to a home solar power
generation system, and in anticipation of future partnerships
with power companies, a software program to optimize thesupply and demand balance of electricity.
Building on the development of the V2H system,
we intend to expand our business field from solely
feeding power to vehicles to optimizing the charging and28

Toyota Industries Report 2019

Buildings

Biomass power
generation

Thermal power
generation

Factories

Houses

Initiative 3

Converting High Power Output of a Fuel Cell (FC) Bus to Lower Power Output for
Use as a Power Source for Evacuation Shelters or at Outdoor Events
We have developed and released a vehicle-to-load (V2L)
system*5 that uses the power generation function of an FC
bus to supply electricity externally. This system can feed
power simultaneously through six 100V 1.5kW outlets,
equivalent to about four to five days’ worth of powerusage*6, which allows its use as a power source at outdoor
events or for evacuation shelters.
Our V2L system is compatible with the SORA FC bus,which was released by TMC in March 2018 and has been

already adopted by the Bureau of Transportation of theTokyo Metropolitan Government and other private-sectorbus operators.
Toward the year 2020, we anticipate more than 100
additional SORA FC buses will be on the road, including
those required for the 2020 Tokyo Olympic and Paralympic
Games, and will be utilized in various situations.
*5: Systems and equipment designed to use the power accumulation and generation
capabilities of HVs, PHVs, EVs and FCVs to feed power to electric appliances*6: Calculated by using a power use estimate of about 50 kWh/day (using lighting for six
hours/day)

Evacuation shelters,
school gymnasiums, etc.

Commercial power grid

■ Notional Image of a V2H
System Composition
Using solar power generation

Controlling charging anddischarging of electricity
with PHV/EVSystem
connection

Storage battery

Feeding daytime surplus
electricity to a vehicle

V2H Feeding electricity
PHV/EV
from a vehicle at suchoccasions as during thenighttime when solar power
generation is not available

V2L
V2L

TMC’s SORA FC bus

AC 200V

Financial Section /Corporate Information

Utilizing Charging Stand Technology toAchieve Mutual Vehicle-Home Power Supply

Solar power
generation

Promotion of ESG Initiatives

1.5kW

Control panel

Power combiner*3: General term used to refer to systems and equipment designed for using in homeelectricity accumulated in PHV/EV batteries*4: Power grid that can control and optimize the flow of electricity both from the demandand supply sides

Wind power
generation

Strategies and Businesses■ Notional Image of Operating High-Power
Equipment

1.5kW

Demand andsupply ofelectricity

discharging of power between vehicles and various facilities
and equipment, and in turn contribute to the creation of asmart grid*4 society.

Connecting Multiple DC-AC Inverters to Run
High-Power Appliances during a Power Outage
To enable the operation of elevators, multilevel car park
lifts, lighting fixtures of evacuation shelters, water-supply
pumps and other high-power appliances and equipment
when power is lost during a disaster, we developed a power
combiner to connect six 1.5kW vehicle-use DC-AC inverters
to provide a high wattage of 9kW.
In fiscal 2020, we will begin feasibility tests jointlywith relevant local governments to promote earlycommercialization of the power combiner as an emergency
power source for local government offices, hospitals, welfare
facilities, condominiums and large commercial facilities.

■ Notional Image of a Smart Grid
Connecting to an Electrified
VehicleCompany Introduction

Smartphones and other devices at a charging
corner (2016 Kumamoto Earthquakes)© The Yomiuri ShimbunSwitcher

AC 100V

The initiatives described in this Special Feature are only a few examples of our products for use
during disasters and other situations, which are based on our power source technologies. Goingforward, we will continue to explore new applications for our existing products as well as develop
new products in order to respond to ever-changing customer needs.
29