The high-performance Fuel Pump improves the smoothness of power output by stabilizing the fuel supply pressure (fluctuation rate ≤±0.15bar). For example, after the Porsche 911 GT3 RS upgraded the pump body with a flow rate of 68L/h, the engine torque fluctuation range decreased from ±8.5Nm to ±2.3Nm. The standard deviation of acceleration time from 0 to 100km/h has decreased by 62%. SAE research shows that when fuel pressure control precision is increased from ±5% to ±1.5%, the frequency of correction of air-fuel ratio by the ECU decreases from 12 times per second to 3 times per second, reducing sudden acceleration jerking (the rate of change of longitudinal acceleration is decreased by 40%). The test results of the 2023 BMW M4 Competition show that its variable flow Fuel Pump is able to make the fuel injection synchronization error in 0.02ms in track mode, improving the power connection response speed in turning by 18%.
In the case of vibration reduction, the Fuel Pump with A two-stage shock absorption bracket is able to reduce the working noise from 72dB(A) to 64dB(A). For example, the Audi RS6 Avant’s monolithic pump body optimizes the resonance frequency (avoiding the engine’s main excitation frequency range of 100-300Hz). Reduce the floor vibration acceleration inside the vehicle from 0.6m/s² to 0.2m/s². Toyota’s TNGA platform vehicles possess a fuel pump flow pulsation rate of less than 3% (industry standard of 8%), and with the active suspension system in conjunction, the idle vibration amplitude of the steering wheel has been successfully reduced by 55% (from ±0.4mm to ±0.18mm). In 2022, by substituting the Tesla Model S Plaid’s carbon fiber-wrapped pump body with an improved part, the materials in the high-frequency noise energy distribution above 4kHz were decreased by 73%, whereas the subjective NVH score increased by 1.8 points (10 points scale).
Dynamic response enhances the driving experience in a direct manner. The ingenious Fuel Pump in the Mercedes-Benz AMG GT Black Series is also able to pre-tune the quantity of fuel to be delivered based on the reading of the G-value sensor. It is able to increase the fuel pressure level from 4.5bar to 6.2bar 0.3 seconds earlier while entering the turn and decrease the throttle response delay when exiting the turn by 120ms. Fuel pump flow density of the McLaren Speedtail is 1.2L/s·kW (0.8L/s·kW for the general model), and through the layered injection technology, the range of full throttle air-fuel ratio fluctuation is reduced from 14.2:1-15.1:1 to 14.6:1±0.1, and turbo lag is reduced by 37%. Actual test data of Ferrari 296 GTB shows that its high-pressure Fuel Pump (working pressure 350bar) increases the specific power of the V6 engine to 164kW/L, and the speed climb rate to 9,500 RPM /s (22% improvement over the previous generation), and the maximum shift impact force is reduced by 29%.
Fuel economy optimization indirectly improves comfort. The electronic variable Volvo XC90 T8 Fuel Pump enhances the fuel flow control accuracy to ±0.7% in real-time matching of the 48V mild hybrid system load. The variation in engine speed in high-speed cruise is lowered by 4.5%. In combination with the pneumatic suspension, the pitch Angle change rate of the vehicle body is maximized from 1.2°/s to 0.6°/s. The 2024 Ford F-150 Lightning Extended-Range comes with silicone oil shock-absorbing Fuel Pump. Three-fold (from 12% to 36%) improvement of efficiency in cold start fuel heating is achieved in the -30°C environment, as well as improvement in cabin heating speed by 42% (time to desired temperature is reduced from 8.7 minutes to 5 minutes). Hyundai Motor Group research has confirmed that the Fuel Pump with precise fuel delivery can reduce mode-switching power interruption time in HEV models by 83% (0.6 seconds to 0.1 seconds) and motion sickness occurrence in drivers and passengers by 46%.
Maintenance cycles and reliability are important to long-term comfort. Bosch’s third-generation Fuel Pump incorporates diamond-coated bearings to extend the MTBF (Mean Time Between Failures) to 35,000 hours from 12,000 hours, and abnormal vibration repair report rate by the users within 5 years decreased by 91%. Porsche certification facts indicate that its ceramic seal ring fuel pump has a rate of flow attenuation of less than 2% at 100,000 kilometers (compared to 8-12% for standard pumps) to provide 3.5% control standard deviation of power attenuation through vehicle life (industry standard: 11%). The J.D. Power 2024 report, in the vehicle models with intelligent diagnostic Fuel Pump, emergency rescue calls due to fuel system failures decreased by 67%, and the user satisfaction index increased by 19 percentage points.