公开(公告)号：US20220219543A1

公开(公告)日：2022-07-14

申请号：US17705883

申请日：2022-03-28

Applicant: DENSO CORPORATION

Inventor： Tomohiro TAKIZAWA ,  Akira SUMI

IPC: B60L3/00 ,  B60R16/033

Abstract: An electronic control apparatus includes a first controller that is activated upon being fed with electric power through a first electric power feeding path, and a second controller that is fed with electric power through a second electric power feeding path. In the first electric power feeding path, there is provided a power supply switch that is turned on when a switch command is a connection command and turned off when the switch command is a cutoff command. The first controller transmits a state signal indicating whether it is in an activated state or a stopped state. The second controller diagnoses the power supply switch as being abnormal on condition that the state signal indicates the stopped state of the first controller when the switch command is the connection command or the state signal indicates the activated state of the first controller when the switch command is the cutoff command.

公开(公告)号：US20150322912A1

公开(公告)日：2015-11-12

申请号：US14709963

申请日：2015-05-12

Applicant: DENSO CORPORATION

Inventor： Tomohiro TAKIZAWA ,  Hideya NOTANI ,  Yoshinori MORITA

IPC: F02N11/08

CPC classification number: F02N11/0837 ,  B60W30/18 ,  F02N11/0822 ,  F02N11/0833 ,  F02N11/0848 ,  F02N2200/0801 ,  F02N2200/0802 ,  F02N2200/102 ,  F02N2200/124 ,  Y02T10/48

Abstract: A control system for vehicles equipped with an engine and an automatic transmission mechanism which has a non-running position and a running position one of which is selected by a driver of the vehicle and works to automatically change a speed of an output thereof. The control system basically inhibits the engine from being automatically stopped on an uphill road in order to minimize the rolling back of the vehicle upon start of the vehicle, but is responsive to the driver's intention to permit the engine to be automatically stopped, that is, the switching from the running position to the non-running position to stop the engine.

Abstract translation: 一种配备有发动机和自动变速机构的车辆的控制系统，其具有非行驶位置和行驶位置，其中一个由车辆驾驶员选择，并且自动改变其输出速度。 控制系统基本上禁止发动机在上坡路上自动停止，以便在车辆启动时最小化车辆的倒退，但是响应于驾驶员允许发动机自动停止的意图，也就是说， 从运行位置切换到非运行位置以停止发动机。

公开(公告)号：US20160305355A1

公开(公告)日：2016-10-20

申请号：US15097606

申请日：2016-04-13

Applicant: DENSO CORPORATION

Inventor： Tomohiro TAKIZAWA ,  Shinsuke KAWAZU

IPC: F02D41/00 ,  F02N11/08

CPC classification number: F02D41/0097 ,  F02N11/0844 ,  F02N11/0851 ,  F02N11/087 ,  F02N11/101 ,  F02N11/105 ,  F02N15/067 ,  F02N19/005 ,  F02N2200/022 ,  F02N2250/04 ,  Y02T10/48

Abstract: An engine control apparatus predicts the speed of an engine in a normal rotation range as a function of a loss energy in an engine rotation pulsating period and also predicts the speed of the engine in a reverse rotation range as a function of a pumping loss component and a loss energy which is derived by reversing the sign of a value of a friction component that is a portion of the loss energy in the normal rotation range and arises from mechanical friction to which the piston is subjected during stroke thereof. The pumping loss component is an energy loss occurring in the intake stroke of the engine. This calculation enhances the accuracy in predicting a future engine speed between start of a drop in speed of the engine resulting from stop of combustion of fuel and stop of rotation of the engine.

Abstract translation: 发动机控制装置将发动机在正常旋转范围内的速度作为发动机旋转脉动时段中的损耗能量的函数来预测，并且还根据泵送损耗分量来预测发动机在反向旋转范围内的速度， 通过使作为正常旋转范围内的损失能量的一部分的摩擦分量的值的符号反转而产生的损失能量，并且来自活塞在其冲程期间经受的机械摩擦。 泵送损耗分量是在发动机的进气冲程中发生的能量损失。 该计算提高了在停止燃料燃烧和停止发动机旋转引起的发动机速度下降之间的未来发动机转速预测的精度。