公开(公告)号：US20160348555A1

公开(公告)日：2016-12-01

申请号：US15164078

申请日：2016-05-25

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA ,  KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

发明人： Tomihisa TSUCHIYA ,  Naoya OKAMOTO ,  Takahiro KIYOFUJI ,  Sakutaro HOSHI

IPC分类号： F01N3/20

CPC分类号： F01N3/208 ,  F01N9/00 ,  F01N2610/02 ,  F01N2610/1406 ,  F01N2610/144 ,  F01N2610/146 ,  F01N2610/1493 ,  F01N2900/1808 ,  F01N2900/1814 ,  F01N2900/1822 ,  Y02T10/24 ,  Y02T10/47

摘要： A aqueous urea solution supply device for an engine is provided with a tank that stores aqueous urea solution, a valve configured to add the aqueous urea solution to exhaust gas, and a passage configured to supply the aqueous urea solution in the tank to the valve. When a pressure of the aqueous urea solution supplied to the valve is equal to or lower than a predetermined pressure and the amount of the aqueous urea solution in the tank is equal to or smaller than a predetermined threshold, an electronic control unit determines that the aqueous urea solution in an amount required for cooling of the valve cannot be supplied from the tank to the valve and executes a return control for returning the aqueous urea solution in the valve to the tank.

摘要翻译： 发动机用尿素水溶液供给装置设置有储存尿素水溶液的罐，将尿素水溶液添加到废气中的阀，以及将罐内的尿素水溶液供给到阀的通路。 当提供给阀的尿素水溶液的压力等于或低于预定压力并且罐中的尿素水溶液的量等于或小于预定阈值时，电子控制单元确定水 不需要从罐向阀提供必要量的用于冷却阀的尿素溶液，并且执行用于将阀中的尿素水溶液返回到罐的返回控制。

公开(公告)号：US20160281568A1

公开(公告)日：2016-09-29

申请号：US15079771

申请日：2016-03-24

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA ,  KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

发明人： Takahiro KIYOFUJI ,  Kingo SUYAMA ,  Gaku KISHIMOTO ,  Atsushi KIDOKORO

IPC分类号： F01N3/20 ,  B60K37/02

CPC分类号： F01N3/208 ,  B60K37/02 ,  B60Y2400/3019 ,  F01N3/2066 ,  F01N2610/00 ,  F01N2610/02 ,  F01N2610/1406 ,  F01N2610/148 ,  F01N2900/1814 ,  Y02A50/2325 ,  Y02T10/24

摘要： A controller calculates a period travel distance that is a travel distance of the vehicle from when the available travel distance is calculated to when the available travel distance is calculated next. The controller, when the remaining amount of urea aqueous solution inside a tank exceeds a predetermined amount, executes a first calculation process in which the available travel distance is calculated with reference to the remaining amount of the urea aqueous solution. The controller, after the remaining amount of the urea aqueous solution becomes smaller than or equal to a predetermined amount, executes a second calculation process in which the available travel distance is calculated by subtracting the period travel distance from the previously calculated available travel distance.

摘要翻译： 控制器计算作为车辆的行驶距离与从可用行驶距离计算到下次计算可用行驶距离之间的行驶距离。 控制器当罐内的尿素水溶液的剩余量超过预定量时，执行参照尿素水溶液的剩余量计算可用行驶距离的第一计算处理。 在尿素水溶液的剩余量变得小于或等于预定量之后，控制器执行第二计算处理，其中通过从先前计算出的可行程距离减去周期行程距离来计算可用行驶距离。