Hydrogen Motor

Mazda Tribute Hybrid

Mazda Tribute Hybrid (2008)

The outside of the Tribute Hybrid (and presumably the next conventional Tribute as well) didn't get as much of a face-lift as the Escape did. The grille loses its crossbar, and the Mazda logo has moved up, while the headlights and taillights are new. Fog lights are standard for both trim levels � the Touring and the Grand Touring. The windows taper and ascend toward the rear, in line with what many smaller SUVs are doing these days.

The Tribute still has seating for five, and there's a center console storage compartment that Mazda says is big enough to hold a laptop. The rear seat is split 60/40, and the Tribute has just shy of 30 cubic feet of storage space with the back seats up; it's 66 cubic feet with them down. The rear window opens independent of the liftgate if you just need to toss your stuff into the back.

Mazda Tribute Hybrid Mazda Tribute Hybrid

* MZR 2.3L engine

The base MZR 2.3L engine newly employs the Atkinson cycle to improve its fuel efficiency and ensure extensive performance with a maximum output of 99 kW (133 PS) at 6000 rpm and a maximum torque of 167 Nm at 4250 rpm. MZR 2.3L engine

* Alternating current synchronous motor (output: 70 kW)

The Tribute Hybrid has an alternating current synchronous electric motor which is capable of powering the vehicle up to 40 kilometers per hour. It also supplies auxiliary power when required while driving. In addition, it functions as a generator in deceleration and charges the battery.

* Generator

The generator supplies power to the motor and charges the battery in accordance with driving conditions. It also works as a starter motor when starting the engine.

* Electronically-controlled continuously variable transmission

This achieves seamless and highly efficient continuous gear variation by means of an electronic control system.

* Battery system (330V)

A nickel-hydrogen battery system is installed on the floor of the rear luggage space. Its advanced battery monitor/control function ensures stable battery performance over an extended period.

* Hybrid system controller

This controls battery charging, auxiliary power supply during driving and engine starting. In order to improve fuel efficiency, the engine stops when the vehicle is stationary or being driven with no load on the engine. It also uses the motor as a generator to charge the battery when decelerating.

* How the hybrid system works

Although the vehicle can travel under electric power only at speeds up to 40 kilometers per hour, the hybrid system controller instantaneously starts the engine whenever the battery needs charging or extra power is required for acceleration. Additionally, an idle stop mechanism switches off the engine when the car is stationary at a red light, and automatically restarts it when the accelerator is depressed. When braking, the electric motor also functions as a generator to recover the vehicle's kinetic energy and charge the battery. With this technology, the Tribute Hybrid improves on the fuel efficiency of the base version with the same size engine by 32 percent on highways and 74 percent in urban areas. It can cover more than 640 kilometers (400 miles) before refueling. The Tribute Hybrid reduces exhaust emissions of nitrogen oxide (NOx) by over 70 percent, carbon monoxide (CO) by over 75 percent and hydrocarbons (HC) by approximately 90 percent compared to the US Tier 2 Bin 5 emissions standards. It also satisfies the AT-PZEV (Advanced Technology Partial Zero Emissions Vehicle) standard of California. While being extremely eco-friendly, the Tribute Hybrid offers powerful and smooth acceleration equivalent to that of a V6 3.0-liter engine by means of the combination of the hybrid system with Mazda's MZR 2.3L engine.

Mazda Tribute Hybrid Mazda Tribute Hybrid