Chevrolet Motor Divison Press Release
Corvette Active Handling System Debuts
10:07 a.m. Nov 06, 1997 Eastern

LAS VEGAS, Nov. 6 /PRNewswire/ -- The Chevrolet Corvette has a well-
deserved reputation for cutting-edge technology and high performance -- all
delivered at a very competitive price. That reputation will soon be enhanced when
an optional Active Handling chassis control system (JL4) becomes available on all
Corvette models early in 1998, and standard on convertibles with the Indy 500
Pace Car package.

Corvette's Active Handling system features a unique blend of sensors that are
capable of reading steering inputs, vehicle yaw rate and lateral g force, then
activating the vehicle's brakes on a selective basis to help stabilize the car in
emergency maneuvers. When added to Corvette's well-developed ABS braking
and traction control systems, Active Handling greatly enhances the accident
avoidance capabilities of the already nimble Corvette. No other sports car has a
system like this, and similar but less-sophisticated systems are currently offered on
only a handful of high-end luxury cars.

Active Handling works to reduce excessive understeer or oversteer. Understeer is
the tendency for a vehicle to "push" or run wide in a corner, and oversteer is the
tendency for the back end of the car to swing out in a corner.

As mentioned earlier, the Corvette Active Handling system senses these usually
negative conditions and helps the driver overcome them by selectively applying
individual wheel braking to pull the car back into line during an emergency

The concept is similar to steering a canoe. If the front of a canoe starts turning to
the right, it can be brought back on course by dipping a paddle into the water on
the left to act as a rudder and brake. Of course, the Corvette Active Handling
system is much more sophisticated, so the individual wheel braking happens in
less time than it takes for the blink of an eye. Like ABS brakes or traction control
systems, Active Handling goes into action only when the car's limits have been
exceeded in some way so it will be relatively transparent to the driver, even in
emergency conditions.

The Corvette Active Handling system goes a step further than other similar
systems by giving the driver more latitude before engaging, thereby retaining the
more aggressive feel of a true sports car. For the racetrack, there's even a
competition mode which deactivates the traction control part of the system to
allow for wheel-spin and acceleration -- conditions that highly- skilled drivers
sometimes find useful on the racetrack. This is a feature not offered on any similar
chassis control systems.

As good as it is, Active Handling has its upper limits. At some point the laws of
physics will take over, and at that point not even the most sophisticated system or
driver can prevent a loss of control. SOURCE Chevrolet Motor Division

Copyright 1997, PR Newswire

SOURCE Chevrolet Motor Division

Copyright 1997, PR Newswire

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