Lexus Rx400h Emergency Response Guide
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Hybrid 2006 Model Emergency Response Guide FOREWORD In October 2006, Lexus released the Lexus • A high voltage Electric Power Steering (EPS) RX400h petrol-electric hybrid vehicle in assist motor rated at 42-Volts. Australia. Except where noted in this guide, • Body electrical system rated at 12-Volts basic vehicle systems and features for the negative chassis ground. RX400h are the same as those on the • RX400h is only availbale in Australia as a conventional, non-hybrid, Lexus RX330/350. four wheel drive (4WD). To educate and assist emergency responders in • 4WD models include an additional 650-Volt the safe handling of the RX400h hybrid electric motor to drive the rear wheels. technology, Lexus published this RX400h Emergency Response Guide. • Supplemental Restraint System (SRS) - dual stage frontal airbags, driver knee airbag, High voltage electricity powers the electric front seat mounted side airbags, side curtain motors, generator, inverter/converter, and airbags, and front seat belt pretensioners. power steering. All other automotive electrical High voltage electrical safety is an important devices such as the headlights, radio, and factor in the emergency handling of the gauges are powered from a separate 12-Volt RX400h Hybrid Synergy Drive system. It is battery. Numerous safeguards have been important to recognise and understand the designed into the RX400h to help ensure the disabling procedures and warnings throughout high voltage, approximately 288-Volt, Nickel the guide. Metal Hydride (NiMH) Hybrid Vehicle (HV) battery pack is kept safe and secure in an Additional topics contained in the guide accident. include: • Lexus RX400h identification. The RX400h utilises the following electrical • Major Hybrid Synergy Drive component systems: locations and descriptions. • Maximum 650-Volts AC • Extrication, fire, recovery, and additional • Nominal 288-Volts DC emergency response information. • Nominal 42-Volts DC • Roadside assistance information. • Nominal 12-Volts DC By following the information in this guide, emergency responders should be able to safely perform a rescue involving the Lexus RX400h RX400h Features: hybrid vehicle. • Adoption of Hybrid Synergy Drive as the name for the Lexus Petrol - Electric Hybrid System. • Hybrid Synergy Drive includes a boost converter in the inverter assembly that boosts to 650-Volts the available voltage to the electric motors. • The high voltage hybrid vehicle battery pack rated at 288-Volts. • A high voltage electric motor driven air conditioning compressor rated at 288-Volts. 2006 RX400h i TABLE OF CONTENTS About the RX400h................................................................................................................................. 1 RX400h Identification ........................................................................................................................... 2 Hybrid Synergy Drive Component Locations and Descriptions ....................................................... 5 Hybrid Synergy Drive Operation ......................................................................................................... 6 Hybrid Vehicle (HV) Battery Pack and Auxiliary Battery .................................................................... 7 High Voltage Safety............................................................................................................................... 9 SRS Airbags and Seat Belt Pretensioners........................................................................................... 10 Emergency Response ........................................................................................................................... 11 Extrication .................................................................................................................................... 11 Fire ................................................................................................................................................ 14 Overhaul ....................................................................................................................................... 15 Recovery/Recycling of the NiMH HV Battery Pack .................................................................... 16 Spills ............................................................................................................................................. 16 First Aid......................................................................................................................................... 17 Submersion.................................................................................................................................. 17 Roadside Assistance ............................................................................................................................. 18 Product Safety Data Sheet.................................................................................................................... 20 ii ABOUT THE RX400h The RX400h sedan is the first 4WD petrol-electric hybrid vehicle for Lexus in Australia. Hybrid Synergy Drive means that the vehicle contains a petrol engine and an electric motor for power. Two energy sources are stored on board the vehicle: 1. Petrol stored in the fuel tank for the petrol engine. 2. Electricity stored in a high voltage Hybrid Vehicle (HV) battery pack for the electric motor. The result of combining these two power sources is improved fuel economy and reduced emissions. The petrol engine also powers an electric generator to recharge the battery pack; unlike a pure all electric vehicle, the RX400h never needs to be recharged from an external electric power source. Depending on the driving conditions one or both sources are used to power the vehicle. The following illustration demonstrates how the RX400h operates in various driving modes. ❶ During light acceleration at low speeds, the vehicle is powered by the electric motor. The petrol engine is shut off. ❷ During normal driving, the vehicle is powered mainly by the petrol engine. The petrol engine also powers the generator to recharge the battery pack. ❸ During full acceleration, such as climbing a hill, both the petrol engine and the electric motor power the vehicle. ❹ During deceleration, such as when braking, the vehicle regenerates the kinetic energy from the rear wheels to produce electricity that recharges the battery pack. ❺ While the vehicle is stopped, the petrol engine and electric motor are off, however the vehicle remains on and operational. – 1 – RX400h IDENTIFICATION In appearance, the 2006 RX400h is nearly identical to the conventional, non-hybrid Lexus RX 330/350. The RX400h is a 5-door Luxury Utility Vehicle. Exterior, interior, and engine compartment illustrations are provided to assist in identification. Left Hand Side Driver Door Post The alphanumeric 17 character Vehicle Windshield Identification Number (VIN) is provided in the front windshield cowl, driver door post, and under the front passenger seat. Example VIN: JTJHW31U850011201 (4WD) An RX400h is identified by the first 6 alphanumeric Under Front Passenger Seat characters; JTJHW3 (4WD). VIN Plate Locations Exterior logos on the ❶ rear hatchback door. ❷ Petrol fuel filler door located on the passenger side rear quarter panel. Exterior Front View ❷ ❶ Exterior Rear View Exterior Rear and Passenger Side View Exterior Driver Side View – 2 – RX400h IDENTIFICATION Interior ❸ The instrument cluster (speedometer, fuel gauge, warning lights) located in the dash behind the steering wheel, is different than the one on the conventional, non-hybrid RX330/350. ❹ In place of a tachometer, a power meter showing kW output is used. Interior View NOTE: If the vehicle is shut off, the instrument cluster gauges will be "blacked out," not illuminated. ❹ ❸ Engine Compartment ❺ 3.3- litre V6 aluminum alloy petrol engine. ❻ High voltage inverter/converter assembly with Instrument Cluster View logos on the cover. ❻ ❺ Engine Compartment View Logos on Cover – 3 – HYBRID SYNERGY DRIVE COMPONENT LOCATIONS AND DESCRIPTIONS COMPONENT LOCATION DESCRIPTION 12-Volt ❶ Engine A lead-acid battery Auxiliary Battery Compartment powera all low voltage electrical equipment. ❷ Hybrid ❷ Cabin Area, 288-Volt Nickel Metal ❺ ❹ Vehicle (HV) Mounted to Hydride (NiMH) battery ❶ ❸ Battery Pack Cross Member pack consisting of 30 and behind Rear low voltage (9.6-Volt) Seat modules connected ❻ ❼ in series. Power ❸ Under Carriage Orange coloured power Cables and Engine supply cables carry high- Compartment voltage Direct Current (DC) between the HV battery pack, Hybrid Synergy Drive Components inverter/converter, and A/C compressor. These cables also carry 3-phase Alternating Current (AC) ❶ between the inverter/ converter, motor, and generator. ❽ ❺ ❷ ❸ Inverter/ Engine Boosts and inverts the Converter ❹ Compartment high voltage electricity ❹ ➒ from the HV battery pack to 3-phase AC electricity that drives the electric motor. The inverter/ converter also converts AC electricity from the Components (Top View) and High Voltage electric generator and Power Cables electric motor (regenerative braking) to DC that recharges the HV battery pack. Petrol ❺ Engine Provides two functions: Engine Compartment 1) powers vehicle; 2) powers generator to recharge the HV battery pack. The engine is started and stopped under control of the vehicle computer. Front ❻ Engine 3-phase high voltage Electric Compartment AC permanent magnet Motor electric motor contained in the front transaxle. Used to power the front