2015 BMW M4 Coupe MotoGP Safety Car

TECHNOLOGY TRANSFER FOR THE FUTURE WITH POSSIBILITY

Seeming as it does in the exceptionally operation-oriented world of MotoGP, where suitably striking operation parameters must be also boasted by the planet 's top bike racers battle for points and places, the Safety Car. Bearing this particular at heart, the engineers have equipped the highperformance power unit using an advanced water injection, thereby greatly increasing the operation of the engine. In addition to raising the advanced system torque and functionality, additionally ensures efficacy that is excellent with advantages in terms of exhaust emissions and fullload consumption. As a BMW M merchandise in the frontier of invention and technology, the BMW M4 MotoGP Safety Car additionally opens up chances for use of the technology in future generation versions.

ADVANCED COOLING SYSTEM FOR greatest OPERATION

Up until the high potential operation of the energized, six-cylinder inline engine has consistently set especially high requirement on the temperature direction of its own auxiliaries and the engine. To be able to ensure optimum working temperatures all the time, BMW M Division has turned into a cooling system that's as advanced as it's not ineffective. Next to the primary radiator, added radiators additionally ensure balanced temperature control along with for turbocharger and the gearbox. The exhaust air, which is warmed by the turbocharger, is supported through yet another electrical water pump and is cooled using indirect system.

Increase in operation clear in this season 's BMW M4 MotoGP Safety Car's kind additionally puts greater demand on the turbo engine's thermal qualities, especially the cooling system of the atmosphere that is supercharged. This challenge continues to be overcome utilizing the water injection that is advanced. At the same time as substantially raising functionality, the high performance power unit also boasts excellent fullload consumption and emission amounts.

In a BMW M generation version in the not too distant future, the water injection system may also be used following extreme testing inside the MotoGP World Championship. This enables BMW M Division customers to benefit from technology that is high performance from the racetrack, which greatly enhances operation on the roads and is ideally suited for ordinary use.

WATER INJECTION: COOLING EFFECTIVENESS INCREASES

The water injection system used by BMW M Department farther optimises consumption and the performance of the energized six-cylinder, inline engine. The engineers use the physical effect through the vaporisation process of the water to take out the energy needed in the environmental medium. Water is injected to the collector as a fine spray of the intake module, so substantially cooling the exhaust atmosphere during vaporisation. This therefore reduces the propensity for knocking and lowers the discharge temperature. The turbo engine can therefore be used with an increased charging an earlier ignition stage and pressure.

The potency of the engine thus drastically enhances. Torque and functionality raises, whilst in the exact same time ensuring emission amounts and excellent consumption. Therefore, the improved operation is possible without raising the heat put on operation-associated components, meaning the dependability of the parts isn't changed.

POTENTIAL FOR ORDERLY USE

The benefits of water injection could be used in numerous manners, according to the vehicle and engine layout. The engineers have comparatively free rein to determine to what extent they want to optimise either the consumption or the operation.

And eventually: instead of more functionality, water injection also can be configured to cut back eating, when fully loaded, so enabling more savings.

If water injection is considered when designing a high performance engine, the turbocharger may be executed using a high level of supercharging, whilst in the exact same time reaching a higher compression ratio. The effect is the decrease in consumption and emission amounts as well as a considerable upsurge in operation when fully loaded.

2015 BMW M4 Coupe MotoGP Safety Car

THE MECHANICS

Various variables limit the performance achievable with a combustion engine, for example, method temperature. Whether this temperature is exceeded, the effect is uncontrolled combustion (knocking on) expensive harm and hence a decrease and, in the worst instance, to the engine. This is especially significant as the intake air is warmed in the supercharger of the turbocharger when the engine is charged. An intercooler does make sure that the temperature drops as essential, but that's its physical limitations. Depending on measurements and layout of the vehicle 's aerodynamics as well as the cooling system, temperatures which are only below the maximum permitted temperatures are reached by the intake air.

Raising the supercharging pressure would surpass the limitation that is knocking and is thus not a feasible means for functionality that is increasing. The supercharged atmosphere that is cooler reduces the tendency of the engine to knock, which makes it possible to bring the stage therefore nearer and forward to the optimum value. On the other hand, cool atmosphere has an increased density which raises the oxygen content. Ultimately, the successful internal cooling reduces the thermal stress on numerous performance-connected parts. This prevents damage to catalytic converters, exhaust valves and pistons, but in addition reduces the stress on the turbocharger, which will be subjected to reduce exhaust temperatures.

RESOLVING A DISAGREEMENT OF OBJECTS

Using water injection to improve the knocking limitation additionally helps to mostly resolve a conflict that is recognizable in goals when designing strong engines. Consumption and operation aren't least discovered by the compression ratio. Thanks this engine to a high compression ratio, boasts low consumption amounts, particularly in the partial load range and is extremely efficient. But the knocking tendency when completely loaded limits the most compression ratio. Water injection can also be extremely valuable here, as it reduces the propensity to knock, whilst the compression ratio raising. In this manner, the turbo engine can reach optimum performance across a broad range of points that are working: the possibility of the technology increases. As fuel isn't accessible everywhere on the planet, water injection helps attain consumption and optimum functionality from engine (ROZ 95).

EXECUTING THE TECHNOLOGY

When the engineers elected to get a layout with three injection valves each providing two cylinders -cylinder, inline engine. This option additionally makes it possible for the system and ensures quite identical distribution.

The total and pump system of detectors and actuating components are controlled by the engine electronic equipment, that were updated so. During normal operation, the times between water refills are significantly longer, with respect to the driving fashion. It's simply essential to refill the water container approximately every five stops when driving faster about the motorway. The system doesn't require any additional care to ensure it is appropriate as easy for day-to-day use.

MAXIMUM SYSTEM SECURITY

Using a refined automatic analysis, the BMW M water injection functions for security reasons. If portions of the system or the water tank be empty neglect, proper measures are going to be taken to secure the power unit. Supercharging ignition and pressure stage are cancelled, so empowering ongoing functioning of the engine with no limitations other than decreased functionality. But a broad range of measures additionally ensures the functionality of the device during regular functioning. The water tank is also freeze-proof.

TECHNOLOGY TRANSFER in the RACETRACK THE ROAD

With water injection, BMW M Department is once more underlining its many years as well as expertise as it pertains to developing strong drive trains. In once, the version offers an obvious view of an M auto that can establish a brand new standard when it comes to exclusivity, functionality and identity. Too as greater functionality coupled with emission amounts and great consumption, customers may also reap the benefits of an advanced water injection system with advantages in regular use as well as on the racetrack.