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The BMW Range
3 Series
E46
new commers-need urgent advise on e46 325
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<blockquote data-quote="wingzee" data-source="post: 623212" data-attributes="member: 22730"><p>Both works with the ABS wheel speed sensors, detecting wheel spin and cutting power.</p><p></p><p>DSC incorporates few additional sensors (lateral, yaw, steering angle sensor, brake pressure sensor) which able to sense the way the car is heading, how the steering wheel is pointed and selectively apply brakes to individual wheels.</p><p></p><p>In essence, DSC = Advanced ASC. More complicated and more parts to fail as well. Replaced my steering angle sensor for a whopping 900 bucks.</p><p></p><p>FUNCTION:</p><p>ASC & DSC work with the ABS system to provide enhanced vehicle stability. </p><p></p><p>ASC - Automatic Stability Control</p><p>ASC uses speed sensors at each wheel and throttle position to improve traction by applying the rear brakes if the rear wheels spin faster than the front. It can also shut off individual fuel injectors and close the throttle valve to help maximize traction. ASC also acts as a virtual limited slip differential by detecting a spinning wheel and applying braking force to just that wheel until traction is regained. AWD models (the xi) use ASC-X which monitors all 4 wheels to provide limited slip differential effect. The ASC system also provides traction control by modulating throttle, ignition timing and braking force to maintain traction. </p><p></p><p>DSC - Dynamic Stability Control</p><p>DSC builds on the features of the ASC system. While ASC functions only during acceleration and braking, DSC functions during all driving conditions such as cornering and emergency maneuvers. Additional sensors are added to acheive this level of stability such as lateral, yaw, brake pedal, and steering angle sensors. In DSC, each of the three subsystems: ABS, ASC, and DSC have jobs to do, and these are: </p><p></p><p>ABS: Cornering Brake Control, Electronic Brake Proportioning</p><p>ASC: Brake Intervention (or ABD-Automatic Braking Differential), Drag/Drive Torque Reduction</p><p>DSC: Dynamic Brake Control, Maximum Brake Control</p></blockquote><p></p>
[QUOTE="wingzee, post: 623212, member: 22730"] Both works with the ABS wheel speed sensors, detecting wheel spin and cutting power. DSC incorporates few additional sensors (lateral, yaw, steering angle sensor, brake pressure sensor) which able to sense the way the car is heading, how the steering wheel is pointed and selectively apply brakes to individual wheels. In essence, DSC = Advanced ASC. More complicated and more parts to fail as well. Replaced my steering angle sensor for a whopping 900 bucks. FUNCTION: ASC & DSC work with the ABS system to provide enhanced vehicle stability. ASC - Automatic Stability Control ASC uses speed sensors at each wheel and throttle position to improve traction by applying the rear brakes if the rear wheels spin faster than the front. It can also shut off individual fuel injectors and close the throttle valve to help maximize traction. ASC also acts as a virtual limited slip differential by detecting a spinning wheel and applying braking force to just that wheel until traction is regained. AWD models (the xi) use ASC-X which monitors all 4 wheels to provide limited slip differential effect. The ASC system also provides traction control by modulating throttle, ignition timing and braking force to maintain traction. DSC - Dynamic Stability Control DSC builds on the features of the ASC system. While ASC functions only during acceleration and braking, DSC functions during all driving conditions such as cornering and emergency maneuvers. Additional sensors are added to acheive this level of stability such as lateral, yaw, brake pedal, and steering angle sensors. In DSC, each of the three subsystems: ABS, ASC, and DSC have jobs to do, and these are: ABS: Cornering Brake Control, Electronic Brake Proportioning ASC: Brake Intervention (or ABD-Automatic Braking Differential), Drag/Drive Torque Reduction DSC: Dynamic Brake Control, Maximum Brake Control [/QUOTE]
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