An Intelligent Dual-Voltage Driving Method and Circuit For a Common Rail Injector for Heavy-Duty Diesel Engines

Xiong, Jian; Gu, Hong

doi:10.1109/access.2017.2687038

Cited by 5 publications

(2 citation statements)

References 16 publications

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“…A typical driving circuit for the fuel injectors in GDI or CRDI engines is shown in Figure 1a. The power-MOS transistors M H1 and M H2 connect the high side of the injector, modeled with an L-R equivalent, to either the battery voltage, i.e., 12 V, or to a high-voltage rail, up to approximately 80 V. The latter is locally generated by a DC-DC converter, shared among all the injectors [25,26]. This dual-voltage control increases the time derivative of the current at the onset of the injector activation with respect to the case of a single 12 V supply, leading to more accurate control of the fuel-injection startup time.…”

Section: Injector and Igniter Signalsmentioning

confidence: 99%

CMOS Interface Circuits for High-Voltage Automotive Signals

Boni

Caselli

Magnanini³

et al. 2022

Electronics

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The acquisition of high-voltage signals from sensors and actuators in an internal-combustion engine is often required for diagnostic purposes or in the case of conversion to alternative fuels, such as hydrogen, natural gas, or biogas. The integration of electronic interfaces and acquisition circuits in a single device provides benefits in terms of component-count reduction and performance. Nonetheless, the high voltage level of the involved signals makes on-chip design challenging. Additionally, the circuits should be compatible with the CMOS technology, with limited use of high-voltage options and a minimum number of off-chip components. This paper describes the design and the implementation in 350 nm CMOS technology of electronic interfaces and acquisition circuits for typical high-voltage signals of automotive context. In particular, a novel co-design of dedicated voltage clamps with electro-static discharge (ESD) protections is described. The proposed circuits require only a single off-chip resistor, and they are suitable for the acquisition of signals with peak voltages up to 400 V. The measured performance of the silicon prototypes, in the [−40 °C, +125 °C] temperature range, make the proposed electronic interfaces suitable for the automotive domain.

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Section: Injector and Igniter Signalsmentioning

confidence: 99%

CMOS Interface Circuits for High-Voltage Automotive Signals

Boni

Caselli

Magnanini³

et al. 2022

Electronics

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show abstract

“…(2) Engine model To avoid heavy computational burden, a look-up table based on the experimental data is used to build the engine model [25,26]. The inputs of the model are engine speed and torque, the output is the fuel consumption rate, which is formulated as where ṁ eng is the engine fuel consumption rate, Γ is the empirical map for the engine fuel flow rate.…”

Section: Modeling Of the System (1) Coupling Mechanism Modelmentioning

confidence: 99%

Research on instantaneous optimal control of the hybrid electric vehicle with planetary gear sets

Wang

Zhang

Shi

et al. 2019

J Braz. Soc. Mech. Sci. Eng.

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Power-split hybrid electric vehicle (HEV), mainly adopting the planetary power coupling mechanism, is superior in improving the fuel economy because the engine speed and torque are decoupled from those of the wheels. Focusing on a power-split HEV with dual-planetary gear sets, this paper establishes an instantaneous optimal control to regulate its power flow. Firstly, simulation-oriented models are established, including the coupling mechanism, the engine, the electrical machines and the battery. Secondly, feasible operation modes of the vehicle are analyzed. Also, the torque and speed equations between the engine and motors are obtained. On the basis of the above, the instantaneous optimization strategy, adaptive equivalent fuel consumption minimization strategy (A-ECMS), is designed, which is developed from the equivalent fuel consumption minimization strategy. The optimization strategy is of high robustness to different driving cycles. To realize the engine speed tracking, a PI controller is introduced. At last, the control effects of A-ECMS are compared with the effects of the engine optimal operating line control strategy. The effectiveness and rationality of two strategies are tested in the dSPACE real-time simulator. Test results under different driving scenarios prove that the A-ECMS is of better performance in ensuring the HEV fuel economy and the battery charging sustainability.

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Design of a Double-Path Magnetic Circuit Structure Hybrid Fuel Injector Considering Demagnetization Characteristics

Liu

Lee

2018

Journal of Elec Materi

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An Intelligent Dual-Voltage Driving Method and Circuit For a Common Rail Injector for Heavy-Duty Diesel Engines

Cited by 5 publications

References 16 publications

CMOS Interface Circuits for High-Voltage Automotive Signals

CMOS Interface Circuits for High-Voltage Automotive Signals

Research on instantaneous optimal control of the hybrid electric vehicle with planetary gear sets

Design of a Double-Path Magnetic Circuit Structure Hybrid Fuel Injector Considering Demagnetization Characteristics

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