Delphi
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Brakes and Modules

Delphi Quiet Corner Module

Delphi knows vehicles inside and out. By leveraging decades of its automotive experience and expertise, Delphi continues to design, develop, test, and manufacture automotive vehicle innovations that meet or exceed customer expectations. Delphi supplies a full range of braking components, modules, and systems that can be tailored to the manufacturers’ specific requirements. With technical centers and manufacturing sites located throughout the world, Delphi provides personalized customer service and on-time, cost-effective deliveries to vehicle manufacturers and other Tier 1 suppliers.

Description

As an example of Delphi’s capability, the Delphi quiet corner module is more than a compact integration of a rotor, caliper, knuckle, and other components. To provide maximum noise control, each component is thoroughly analyzed for its unique "modal map"—a record of frequency modes used to characterize possible noise, vibration, and harshness (NVH). Then Delphi engineers go one step further by measuring how each component’s modal signature may interact with other components within the corner module. For example, two components may exhibit excellent NVH characteristics when tested individually. However, when combined, the frequencies may interact to produce unacceptable NVH performance.

For optimal system effectiveness, Delphi can also analyze the suspension system to validate that the overall vehicle provides the driver with a quiet ride.

Each quiet corner module is fully assembled and tested before being shipped to a vehicle assembly location. Its modular configuration helps reduce assembly plant part numbers, helping save vehicle manufacturers significant assembly time and cost as well as floor space.

Features Benefits
Separated modal map
testing
  • Minimizes frequency
    interaction

Optimized rotor design

 

  • Lowers mass
  • Improves thermal efficiency

Robust caliper

 

 

  • Improves pedal feel
  • Reduces drag
  • Improves pressure
    distribution/reduces taper
    wear

Aluminum knuckles
and calipers

 

  • Reduces weight
  • Enhances fuel economy
  • Lowers unsprung mass/
    improves ride characteristics

Shipped fully assembled/
tested

 

 

  • Eliminates assembly
    part numbers
  • Helps save assembly time
    and cost
  • Helps save assembly floor
    space
Quiet corner
  • Reduces warranty claims

Typical Applications

The quiet corner module is designed for a complete range of passenger cars, SUVs, and light-duty trucks. It is available in disc or drum brake designs for front and rear applications.

Performance Advantages

As a byproduct of designing the module with optimum NVH characteristics, the consumer experiences an enhanced pedal feel due to a more robust caliper and consistent pressure distribution. The improved rotor design reduces mass, helps improve lining life, and contributes to greater thermal efficiency. By maintaining a low lateral run-out in the corner, due in part to precision wheel bearings, thickness variation generation leading to pulsation/judder is minimized. Lightweight aluminum components and low drag bearings and calipers contribute to better fuel economy. Lightweight components also result in lower unsprung mass, providing improved overall ride characteristics.


 
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