Maximum brake torque
Encyclopedia
Maximum Brake Torque
(MBT) is the use of optimal ignition timing
to take advantage of an internal combustion engine
s maximum power and efficiency.
There is always an optimal spark timing for all operating conditions of an engine. MBT is most ideal at wide-open throttle (WOT), but not desirable when the engine is at idle. Although MBT is desired at WOT, it is wise to retard timing slightly to prevent knocking that may occur and to create a small safety margin. It is possible to calculate the MBT of an engine by taking into account all of the operating conditions of an engine through its sensors. Operating conditions are defined by these engine parameters: lambda, engine load, internal exhaust gas recirculation, engine speed, and spark advance.
Torque
Torque, moment or moment of force , is the tendency of a force to rotate an object about an axis, fulcrum, or pivot. Just as a force is a push or a pull, a torque can be thought of as a twist....
(MBT) is the use of optimal ignition timing
Ignition timing
Ignition timing, in a spark ignition internal combustion engine , is the process of setting the angle relative to piston position and crankshaft angular velocity that a spark will occur in the combustion chamber near the end of the compression stroke...
to take advantage of an internal combustion engine
Internal combustion engine
The internal combustion engine is an engine in which the combustion of a fuel occurs with an oxidizer in a combustion chamber. In an internal combustion engine, the expansion of the high-temperature and high -pressure gases produced by combustion apply direct force to some component of the engine...
s maximum power and efficiency.
There is always an optimal spark timing for all operating conditions of an engine. MBT is most ideal at wide-open throttle (WOT), but not desirable when the engine is at idle. Although MBT is desired at WOT, it is wise to retard timing slightly to prevent knocking that may occur and to create a small safety margin. It is possible to calculate the MBT of an engine by taking into account all of the operating conditions of an engine through its sensors. Operating conditions are defined by these engine parameters: lambda, engine load, internal exhaust gas recirculation, engine speed, and spark advance.