Sep. 30, 1987

TOYOTA ADDS FULL-TIME 4WD COROLLA AND SPRINTER MODELS

 

Toyota City―TOYOTA MOTOR CORPORATION added full-time 4WD (four-wheel drive) models to its Corolla and Sprinter sedan series, and will place them on sale starting October 20 in Japan.

COROLLA SEDAN 1600 FULL-TIME 4WD SE LIMITED

COROLLA SEDAN 1600 FULL-TIME 4WD SE LIMITED

SPRING SEDAN 1600 FULL-TIME 4WD SE SALOON

SPRING SEDAN 1600 FULL-TIME 4WD SE SALOON

The newly added full-time 4WD was developed to assure a consistently excellent running―regardless of weather or road conditions. It is equipped with a center differential which continuously transfers power to all four wheels.

Automatic transmission models use the HYMATIC (Hydraulic Multiplate Active Traction Intelligent Control) full-time 4WD system, which uses a hydraulic multiplate clutch to control the *center differential lock automatically for improved stability. The manual transmission models use a mechanical-lock type center differential, operated by the differential lock switch, to increase tire grip through tough spots―including mud or slush.

All 4WD models are mounted with the newly introduced 4A-F type twin-cam 16-valve engine for excellent performance and economy.

Major Features
  1. Adoption of Full-Time 4WD with Center Differential
    Because both front and rear axles of the 4WD vehicles are traction axles, a revolutional difference between the front and rear axles occurs in cornering. The full-time 4WD models of the Corolla and Sprinter adopted center differentials to absorb the revolutional difference, facilitating smooth driving even when cornering, while continuously transferring power to four wheels.
  2. HYMATIC Full-Time 4WD
    On the models equipped with automatic transmission, the center differential lock mechanism is the first of its kind to adopt a hydraulic multiplate clutch. The HYMATIC fulltime 4WD system changes oil pressure on the multiplate clutches depending on shift position, vehicle speed and throttle opening, and controls the center differential lock to assure proper power distribution between front and rear axles. Because the differential lock is controlled automatically based on running conditions, smoother acceleration, cornering and stable running performance, even on snow-covered or slippery roads, can be expected.
Diffrence in turning radius
Major Types of 4WD Mechanisms
Major Types of 4WD Mechanisms
  1. Introducing the 1.6-liter 16-valve Engine
    All models are equipped with the newly introduced 1.6-liter 16-valve engine (4A-F type, l,587cc) for excellent power performance and economy. Based on the scissor gear-driven 5A-F type 1.5-liter 16-valve l,498cc engine mounted in the new Corolla and Sprinter since last May, the new engine is improved for greater displacement and a change in compression ratio and modified port profile. As result, the engine develops a maximum output of 9IPS and a maximum torque of 13.5kg-m, which means excellent power performance for fulltime 4WD models. Easy-to-use, the twin-cam engine also provides high flexibility from the low- to high-speed range.
Note
*Center Differential Lock System
A full-time 4WD vehicle with a center differential shows excellent running performance under ordinary circumstances, but if one wheel is stuck freewheeling in mud, driving force will not be transmitted to the other three. Under those conditions, the differential lock system disables the center differential directly linking the front and rear axles so that driving force is transferred to all four wheels.

Main Specifications

Downloads (Images)

  • COROLLA SEDAN 1600 FULL-TIME 4WD SE LIMITED
    COROLLA SEDAN 1600 FULL-TIME 4WD SE LIMITED
  • SPRING SEDAN 1600 FULL-TIME 4WD SE SALOON
    SPRING SEDAN 1600 FULL-TIME 4WD SE SALOON