AM771 · Hybrid Drivetrains

Experimental Apparatus for the Study of Hybrid Drivetrains

AM771 is a complete hybrid drivetrain of a production car, mounted on a mobile frame. It is designed for the study of hybrid drivetrains and their components, including the petrol engine, electric motor-generators, automatic transmission, high-voltage battery, power electronics, and air conditioning system. The apparatus allows for hands-on learning and experimentation with hybrid vehicle technology.

Features

complete and functional petrol-electric hybrid drivetrain on a mobile frame
original components of the Toyota Hybrid System II (THS-II), wired as in the vehicle
operation in electric, engine, combined and regeneration mode
front panel with 4mm quick-connect measurement points on the drivetrain's sensor and actuator circuits
62 switchable faults, set without tools
OBD-II diagnosis via 16-pin connector
original instrument cluster
drivetrain visible behind removable protective panels

Learning objectives / experiments

operating modes of a series-parallel hybrid drivetrain: electric, engine, combined, regeneration
investigation of the energy flow between traction battery, motor-generators and petrol engine
structure and behaviour of the high-voltage energy storage system
function of the Toyota E-CVT power-split transaxle
- one planetary gearset and two motor-generators in place of gear steps
engine management on an Atkinson-cycle petrol engine
measurement of sensor and actuator signals at the front panel
fault-finding on 62 switchable faults
- from the fault code to the circuit to the measurement
OBD-II diagnosis: reading and clearing of fault codes, live parameters, adaptations
function of the engine cooling circuit and of the automatic climate control circuit

Scope of delivery

1 apparatus with hybrid drivetrain, complete and functional
1 front panel with 4mm quick-connect measurement points and 62 switchable faults
1 OBD-II 16-pin diagnostic connector and instrument cluster
1 set of measuring leads
1 set of wiring diagrams
1 set of instructional material

All components and accessories listed under Scope of delivery are supplied, whether or not they are visible in the photographs.

Required for operation

exhaust gas routing, ventilation
230V, 50Hz, 1 phase

Specification

petrol-electric hybrid drivetrain, series-parallel power split, original components of the Toyota Hybrid System II
petrol engine with original engine management
Toyota E-CVT hybrid transaxle, with the power-split planetary gearset and both motor-generators
MG1 as generator and engine starter, MG2 as traction motor
high-voltage traction battery with battery control unit and cooling fan
traction inverter, boost converter and DC/DC converter for the 12V on-board system
engine coolant circuit with electric water pump, separate coolant circuit for the power electronics
automatic climate control with electric compressor
exhaust line with catalytic converter
front panel with 4mm quick-connect measurement points on the drivetrain's sensor and actuator circuits
62 switchable faults, set without tools and without work on the wiring harness
engine wiring secured and covered along its length
emergency stop button, accessible from all sides of the frame
closed original circuits for coolant, refrigerant and fuel, exhaust sealed to a single outlet
welded steel frame on lockable castors, removable protective panels

Technical data

Petrol engine 1.5L, 4-cylinder, Atkinson cycle, 54kW

Traction motor (MG2) 45kW, 169Nm

Combined output 73kW

Transmission Toyota E-CVT, power-split planetary gearset

Traction battery NiMH, 144V, 6.5Ah, 20 modules

High-voltage system boost converter to 520V

Refrigerant R134a

Diagnostic interface OBD-II, 16-pin

Measurement points 4mm quick-connect, on the front panel

Switchable faults 62

230V

480 kg