公开(公告)号：US20140114599A1

公开(公告)日：2014-04-24

申请号：US14058427

申请日：2013-10-21

Applicant: DENSO CORPORATION

Inventor： Tomoya YOSHIZAKI ,  Keita OOMI ,  Daisuke KAWAKAMI

IPC: G01D5/244

CPC classification number: G01D3/028

Abstract: An in-vehicle electronic control unit (ECU) for correcting an error introduced to a sensor output signal as a result of amplification is provided. An output voltage of first and second voltage generators and after-amplification voltages of such output voltages are respectively A/D converted for input into a linear function. A microcomputer adjusts the output voltage of the first and second voltage generators which are amplified by the amplification circuit so that the output signals of the first and second voltage generators are adjusted to increase a voltage difference between the two. The increased voltage difference allows accurate identification of the linear function and removal of the error that is introduced to the sensor output signal during the course of processing by the amplification circuit.

Abstract translation: 提供了一种用于校正作为放大的结果引入传感器输出信号的误差的车载电子控制单元（ECU）。 这种输出电压的第一和第二电压发生器的输出电压和后置放大电压分别被A / D转换成线性函数。 微型计算机调节由放大电路放大的第一和第二电压发生器的输出电压，使得调整第一和第二电压发生器的输出信号以增加两者之间的电压差。 增加的电压差允许在放大电路的处理过程中精确地识别线性函数和去除引入到传感器输出信号的误差。

公开(公告)号：US20210108588A1

公开(公告)日：2021-04-15

申请号：US17065121

申请日：2020-10-07

Applicant: DENSO CORPORATION

Inventor： Daisuke KAWAKAMI

IPC: F02D41/20 ,  F02D41/40

Abstract: A fuel injection control device includes an injection valve drive circuit that drives a plurality of injection valves, a booster circuit that generates a boosted voltage supplied to the injection valve drive circuit; and a fuel pump drive circuit that drives a fuel pump for compressing fuel of an internal combustion engine. The fuel pump drive circuit is configured to, when driving the fuel pump, regenerate energy into the booster circuit. The injection valve drive circuit is configured to, during a non-drive period of the injection valves or during a period in which the fuel pump is intermittently driven continuously, perform a non-valve opening energization on at least one of the plurality of injection valves.

公开(公告)号：US20130096812A1

公开(公告)日：2013-04-18

申请号：US13653500

申请日：2012-10-17

Applicant: DENSO CORPORATION

Inventor： Daisuke KAWAKAMI ,  Akito ITOU ,  Ryotaro KUNO

IPC: G06F19/00

CPC classification number: G06F19/00 ,  F02D41/009 ,  F02D41/28 ,  F02D2041/1432 ,  F02D2041/281 ,  F02D2250/14

Abstract: A sensor signal processing device includes an AD conversion section, a filter section, a timing signal generation section, and an arithmetic section. The timing signal generation section generates a signal synchronized with a crank angle of an engine based on a signal indicating the crank angle and generates a data acquisition timing signal by compensating the signal synchronized with the crank angle with a delay time of the filter. The arithmetic section acquires a plurality of sensor signals, which is transmitted from a sensor, converted from an analog signal to a digital signal by the AD conversion section, and filtered by the filter section, in a term before and after receiving the data acquisition timing signal and generates a data synchronized with the data acquisition timing signal.

Abstract translation: 传感器信号处理装置包括AD转换部，滤波部，定时信号生成部和运算部。 定时信号生成部基于表示曲柄角的信号，生成与发动机的曲柄角同步的信号，并通过以滤波器的延迟时间补偿与曲柄角同步的信号来生成数据采集定时信号。 算术部从传感器获取从AD转换部从模拟信号发送到数字信号的多个传感器信号，并且在接收数据采集定时之前和之后，由滤波器部分进行滤波 信号并产生与数据采集定时信号同步的数据。