Traction & Brake Control (TBC) is the safety and efficiency system developed for Toyota's reach trucks, and includes the following functions:
A. Traction Control
Upon detecting wheel spin when handling heavy loads, the reach truck adjusts the drive motor speed to help reduce the risk of further spinning. The reach truck can thus make a steady start without swaying even on wet or slippery surfaces.
Without TBC
Start
Switch Back
The drive wheel spins when the reach truck starts or switches back.
With TBC
Start
Switch Back
The reach truck can make a spin-free start and switchback
B. Front-Assist Brake System
Upon detection of skidding of the rear wheel, the reach truck increases the braking force of the front-assist brakes. Since the braking force is also applied to the front wheels, the truck can stop accurately without skidding. The assist brakes operate both in normal braking and in high-power braking.
Without TBC
Skidding and inaccurate stopping may occur when stopping with a heavy load.
With TBC
The reach truck stops accurately by front and rear wheel braking.
C. Stable Suspension Control
When the reach truck makes a sharp turn at high speed or its mast is tilted too far forward at a high mast height, its stability decreases. TBC-equipped reach truck has a swing lock cylinder and it locks the operation of suspension whenever detecting decrease in stability.
Without TBC
Unstable behavior occurs when the reach truck makes a sharp turn or its mast is tilted excessively at high mast height.
With TBC
The reach truck locks its suspension whenever sensing decrease in stability.