Kangsong KS-A988 Fuel Pump Assembly: Precise Fuel Supply Solution for GAC GA8 Power System

In the market landscape where hybrid and fuel vehicles coexist, the precision of the fuel supply system directly affects power response and energy efficiency. Kangsong Power has launched the fourth generation intelligent fuel pump assembly KS-A988 for the 2.0T Julang power system (4B20J1 engine) of GAC Trumpchi GA8, redefining the domestic brand fuel supply standards through three major technological innovations.

1、 Innovation in Multi dimensional Oil Monitoring Technology
Breaking through the physical limitations of traditional float sensors, KS-A988 integrates the following innovative solutions:

Dual mode sensing system: Hall effect sensor (accuracy ± 1.5mm) works in parallel with capacitive probe to achieve dual verification of fuel level
Dynamic compensation algorithm: based on the CAN bus data stream of Bosch MM7.2 ECU, automatically corrects the fuel offset of vehicle acceleration/ramp conditions
Self cleaning electrode group: using ruthenium iridium alloy coating electrode, combined with periodic pulse voltage (2Hz/5V), to eliminate sediment interference caused by ethanol gasoline
According to the actual measurement by GAC Research Institute, the fuel display error of the assembly is stably controlled within ± 2% under the working conditions of -30 ℃ to 85 ℃ (the national standard GB18352-2016 requires ± 5%).

2、 Ladder pressure control technology
Regarding the injection strategy of the third-generation Julang power system, the KS-A988 has achieved a comprehensive upgrade of its fuel supply system

Dynamic pressure regulation: Built in PID controller matches engine load in real time, narrowing the fluctuation range of fuel rail pressure from ± 0.8MPa to ± 0.3MPa
Noise suppression design: The inclined disc plunger pump is combined with a six phase stepper motor to reduce the working noise from 68dB (A) to 62dB (A)
Intelligent pressure relief protection: When the oil temperature exceeds 95 ℃, the bimetallic memory alloy valve automatically opens the auxiliary heat dissipation channel
In the WLTC test cycle, GA8 models equipped with this assembly achieve:

Turbine intervention delay reduced by 0.2 seconds (2500rpm full throttle condition)
The fuel consumption per 100 kilometers in urban working conditions decreased by 0.7L (from 8.5L to 7.8L)
Reduce carbon particle emissions by 23% under rapid acceleration conditions (meeting the National VI b RDE standard)
3、 Modular adaptive design system
KS-A988 has unique compatibility for the complex oil environment in the Chinese market

Multi fuel adaptability: The pump body components have passed the 3000 hour E20 ethanol gasoline accelerated corrosion test (refer to SAE J1681 standard)
Quick installation system: snap on oil level sensor interface and ISO12096 standard wiring harness, reducing replacement time to 45 minutes
Global pressure coverage: By adjusting the spring preload (range 8-12N/mm), it can adapt to oil supply pressure requirements of 200-450kPa
4、 Digital maintenance ecosystem
Kangsong builds an intelligent service system for end users:

Cloud based fault prediction: Connected to GAC Trumpchi's intelligent cloud platform through OBD port, warning of abnormal fuel pressure 500 kilometers in advance
Visual installation guidance: The WeChat mini program provides AR disassembly and assembly instructions, with a focus on highlighting the key points for disassembling the GA8 rear seat assembly
Lifetime warranty commitment: Registered members can enjoy a 10-year or 200000 kilometer extended warranty for key components (motors/control modules)