Improving minivan design

Engineers further improve 2001 model Chrysler and Dodge minivans with safety and NVH enhancements.

To date DaimlerChrysler has constructed a formidable design formula for its minivan product line: a “garageable” van that offers easy entry and exit, chair-height seating, second-seat access, a low and flat floor, removable seats, and front-wheel drive. To build on this success, engineers sought to improve the 2001 model by incorporating new designs intended to enhance both safety and NVH characteristics.

Safety improvements focused on areas such as the brakes, sliding door and liftgate safeguards, crash protection, airbags, seatbelts, and child safety anchors. The 2001 Dodge and Chrysler minivans feature larger front brake rotors and calipers, and the conventional disc/disc rear brakes have been replaced with a disc/drum system. Subtle changes in the front wheelhouse liners reduce aerodynamic drag and provide significantly more cooling air to the front brakes, minimizing brake fade. The Electronic Variable Brake Proportioning (EVBP) uses the antilock brakes' wheel-speed sensors to gauge rear tire slippage and adjust the hydraulic brake pressure accordingly. As a result, the rear brakes contribute more, and wear on the front brake linings is reduced. According to the company, these changes and improvements result in a brake system with better pedal feel and responsiveness. Stopping distance is shortened and noise and vibration are minimized. “The new minivan has a more powerful engine, which requires more powerful brakes,” said Douglas Shepherd, Director of Minivan Chassis and Powertrain Integration. “We think drivers will be impressed and reassured by the stopping power.”