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Cool Thermal Energy Efficiencies
Delphi uses its knowledge of the complete vehicle to offer a full array of advanced vehicle dynamics components and systems technologies. This selection allows vehicle manufacturers to provide their own distinctive ride and handling characteristics, enhancing vehicle performance and customer enthusiasm. With innovations in controlled suspension, braking, front and rear steering, as well as coordinated engine torque management control, Delphi can supply one product or a combination of integrated systems. Advanced vehicle dynamics includes such innovations as collision avoidance, rollover prevention, skid reduction, and reduced turning radius. Delphi’s understanding of these ride and handling functions and others also helps vehicle manufacturers avoid the costly trial and error process. To further satisfy its customers, Delphi’s numerous technical centers and manufacturing sites located from North America to China help provide personalized customer service and the timely delivery of these products.
Description
The Delphi active stabilizer bar system is a chassis-based option that adjusts the stabilizer bar force to help reduce vehicle roll while cornering, allows increased off-road wheel articulation, and improves ride comfort in straight-ahead and cornering conditions. The active, proportional active stabilizer bar system responds in real time to driving conditions based on actual or anticipated body motions. The system contains one or two controlled active stabilizer bar modules, a hydraulic pressure source, a hydraulic manifold with integral valves and pressure sensor, a controller, and vehicle sensors (e.g., steer angle, lateral acceleration, vehicle speed, etc.). The active stabilizer bar system can be integrated with other systems, such as brake systems and steering systems, to further enhance vehicle stability and control.
| Features | Benefits |
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4000-6000 Nm maximum
High articulation linear
Normally locked failure
Single channel- or two
Linear drop link, triangu- |
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Typical Applications
The active stabilizer bar system offers the ability to improve off-road performance for SUVs, while improving vehicle handling, stability, and ride comfort for all vehicles from passenger cars to light-duty trucks.
Performance Advantages
The active stabilizer bar system helps improve vehicle handling and reduces body motion during cornering and severe steering maneuvers, with no adverse effects on normal or rough-road ride performance. It helps provide increased safety and stability during handling maneuvers, and a more comfortable ride—with less head toss—for the driver. The main performance advantage comes from the ability to reduce stabilizer bar forces under normal driving conditions, and road impacts, while applying only the required stabilizer bar forces to maintain up to zero body roll angle in the corners. Another performance advantage of the active stabilizer bar system is improved wheel articulation, which helps significantly increase off-road capability (traction) and driver comfort at very low vehicle speeds on rough terrain.
Operating Conditions:
Specifications
| Parameters | Requirements |
|
Type |
Single channel Two axle/single channel Two axle/two channel |
| Burst pressure | 400 bar |
| Fail-safe mechanism | Normally locked |
| Mass |
Drop link: 1-2 kg per actuator Triangulated: 15-20 kg per module Rotary: 18-26 kg per module |
| Nominal pump flow rate | 4-12 liters/minute |
| Response time | 80 ms to 150 bar |