Electronic Products
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The Yazaki Group develops and manufactures power management, battery management, junction boxes, ECUs, and sensors as products that reliably and accurately convey in-vehicle power and information to where they are needed.
Product Information
Power Management



Power Switch Built-in Unit
In the event of a power failure or power abnormality, select an important system according to the battery condition and supply power until it stops safely.
Features
Set per critical system with switch control algorithms to help reduce dedicated batteries
Two batteries (Main, 2nd) can power critical systems interpolating
Additional support for critical systems is possible.


Backup Battery Control Unit
Backup of power supply to enable evacuation operation until safety of occupants is ensured in case of sudden power failure for auxiliary equipment when driving
Power supply malfunction detection - Self-contained until backup
Maintain and manage the battery's state of charge by assessing the degree of deterioration



DC/DC Converter High Voltage -12 V
DC/DC converter to convert high voltage of automobile into 12 V voltage for auxiliary equipment
Features
Miniaturization.
Thin transformer with custom-made core
High efficiency
Up to 96% efficiency with full digital control (among the best in the industry)



Integrated DC/DC converter power box 48 V -12 V
Integration of power distribution and voltage conversion functions in automobiles
Contributes to saving space by integrating DC/DC converters and power distribution boxes
Standardize DC/DC converters and customize power boxes to absorb differences in specifications
Power-redundant systems are possible in combination with power-related products installed in vehicles.
JB (junction box)

Junction Box
Power distribution
Centralized connection of wire harnesses
Fuse, relay aggregation
Joint absorption in wire harnesses



Integrated DC/DC converter power box 48 V -12 V
Integration of power distribution and voltage conversion functions in automobiles
Contributes to saving space by integrating DC/DC converters and power distribution boxes
Standardize DC/DC converters and customize power boxes to absorb differences in specifications
Power-redundant systems are possible in combination with power-related products installed in vehicles.
Battery Management

Backup Relay
Features
Switching between main and sub-batteries
Vehicle power state detection
Self-protective function
Relay unit error detection
Low power consumption feature
Optimum use of main and sub-batteries to increase regenerative energy efficiency and provide stable power supply
Miniaturization and weight reduction by simplifying the heat dissipation structure
ECU



HMI Integrated Control Unit
An integrated control ECU that centrally controls and optimally displays input information.
Features
Miniaturization and weight reduction
Adopted composite connector with improved assemblability
Expandability (SoC/CPU substrate separate structure/bracket separate structure)




HMI Integrated Control Unit Meter Integrated Type
Consolidate HMI-related equipment such as meters, HUDs and sensor displays for diverse representation
Features
Consolidate to meter (space saving)
Without Hypervisor by devising safety indication of meter
Use cloud navigation to reduce memory
Compatible with a wide range of models in the popular price range

Power Window and Door Lock Control ECU
Features
Power window rise/fall control
Storage/rotation control of electric storage mirror
Door unlocking/locking control


Semiconductor Power Integration
Features
Driving the Load (headlights, electromagnetic clutches, etc.)
Wire harness protection
Alternate input
CXPI communications
Weight reduction and standardization




Zone ECU
Features
Alternate input of signals
Power supply (with short protection)
Load output
Communications gateway
Configuration that contributes to miniaturization/standardization/scalability
Flexible to add functions by installing inexpensive module drivers downstream of the zone ECU to enable circuit expansion
Supports joint absorption in wire harnesses
Sensors



Built-in Element Connector
Features
Rectification on wire harness circuits, CAN termination resistance, current limiting resistance, etc.
Owns various lineups of resistors, diodes, resistors + capacitors, etc.
A simple design in which terminals with electronic components attached directly are molded in one piece with mold resin
Connector structure that can be directly connected to a wire harness




Oil Temperature Sensor
Features
Detects temperatures of the automatic transmission fluid (A/T F)
Downsized and light weighted by using resin molded body
High accuracy and high reliability by adopting glass-enclosed thermistor
Integration with transmission harness allows installation of sensors inside the transmission


Current Sensor Wire Harness-Penetrating Type
Features
Measures the charge-discharge current flowing through the battery
A wire harness is passed through the sensor body through-hole to detect current.
Magnetic flux density detection system by Hall IC
Current detectable range: +/- 100 A
Power supply voltage: 5V

Contactless fuel senders
Features
Detects fuel tank level
Non-contact detection prevents contact failure of the conventional types
Adapts to various fuels such as biofuels
Tank mountability is improved by supporting arm swinging in both directions. Writing characteristics to IC, share the body