BMW options & electronic systems |
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| There are 8 entries in the glossary. |
| Pages: 1 |
| DBC | | Dynamic Brake Control |
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 | With DBC, when you need to stop in an emergency, the system reinforces your applying the brakes to provide maximum braking in the shortest distance. The criteria for full brake application are the speed with which you apply the brakes and the amount of brake pressure you exert. DBC is only activated when the brake pedal is depressed firmly and quickly. A brake pressure sensor records the magnitude and speed of the brake pressure change and the sensor communicates these values to the DBC control unit. The control unit compares the values to its stored DBC activation thresholds. |
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| DDE | | Digital Diesel Electronics |
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 | Digital diesel electronics (DDE) determines exactly when fuel injection is to start, as well as the volume of fuel supplied and charge pressure. This ensures unprecedented fine tuning under all running conditions. The result is even greater economy, improved smoothness and a reduction of harmful emissions. DDE are also responsible for speed regulation and start clearance after the change code has been checked along with the electronic immobiliser. |
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| DISA | | Differentiated Intake System |
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| DISA is the abbreviation for Differentiated Intake System. The intake pipes are joined by a connecting valve that is closed at low engine speeds, but which guarantees impressive torque values because of the lengthy route the air has to take. At high engine speeds, the valve opens so that the air intake route is shortened, thereby increasing engine performance. |
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| DIVA | | Fully-variable Intake System, DIVA |
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 | Alongside the valve train system Valvetronic, BMW's eight-cylinder engines possess another innovation that ensures they can adjust perfectly to the driver's power requirements: the fully-variable intake system, DIVA. It adapts the length of the intake manifold using a coiled regulation mechanism. Long intake travel provides high torque at low engine speeds, short intake travel helps to develop high power at high speeds. |
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| DME | | Digital Motor Electronics |
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 | Digital Motor Electronics (DME) control, monitor and mastermind all central functions such as the car's ignition and fuel injection, as well as numerous ancillary functions such as the oxygen sensor. Collected information by sensors all over the car is assessed by a microcomputer which then regulates the ignition and fuel injection accordingly. The DME sensors monitor a large number of variables, including engine torque, air intake, the position of the choke valves or accelerator, etc. As a result, DME guarantees optimum power and performance at low fuel consumption and emission rates, as well delivering maximum reliability. The world's very first DME appeared in the BMW 732i in 1979. |
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| DSC | | Dynamic Stability Control |
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 | Dynamic Stability Control (DSC) incorporates a range of systems such as Dynamic Brake Control, traction mode (DTC) and ABS in order to correct instability as soon as it starts. Wheel rotation, longitudinal acceleration and the yaw rate are measured permanently, enabling the system to react when skidding threatens. DSC then adjusts engine power and applies braking as needed to ensure stability. |
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| DTC | | Dynamic Traction Control |
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 | DTC allows you to drive at the limits without fear of exceeding them. It increases wheel slip at the driven wheels in order to ensure optimum traction on any surface. This then allows the behaviour of the BMW to be controlled entirely by the driver, with the Dynamic Stability Control (DSC) system taking a back seat. Only in critical situations and at higher speeds does DSC intervene. |
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| Dynamic Drive | | Dynamic Drive |
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 | Dynamic Drive is an active suspension control system offering an exceptionally high standard of lateral dynamic stability (body stability). This is provided by active anti-roll bars on the front and rear axles - active because rotating hydraulic elements referred to as actuators are integrated in the mechanical anti-roll bars. Incorporating two electronic pressure control valves, these actuators build up independent stability forces on the front and rear axle, minimising body sway when taking a bend. Dynamic Drive ensures supreme agility at all speeds, optimum steering and well-balanced load change behaviour. |
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Glossary V2.0 |
