Abstract: A method for charging a plurality of electric battery units of a vehicle before a scheduled departure time, wherein the method comprises: waking up the vehicle to a wake-up mode; when the vehicle is in the wake-up mode, setting the vehicle in a charging mode; when the vehicle is in the charging mode, connecting one or more electric battery units of a subset of electric battery units of the plurality of electric battery units so as to charge the connected one or more electric battery units of the subset of electric battery units; and when the vehicle is in the charging mode, checking the status of the vehicle. A control arrangement for charging a plurality of electric battery units of a vehicle, wherein the control arrangement is configured to perform the method. A vehicle comprising such a control arrangement.

Abstract: Disclosed is a method for use in a process of selective catalytic reduction (SCR) after-treatment of an exhaust gas of an exhaust gas stream, where the process comprises the reduction of nitrogen oxides of the exhaust gas stream through the use of a reducing agent derived from an additive. The disclosed method comprises: defining an integrand to be the difference between the rate of injection of the additive and the rate of evaporation of the additive to the reducing agent multiplied by a coefficient (s), wherein the value of the coefficient (s) is between zero and one; producing an integral controller output proportional to the integral of the integrand with time; requesting a countermeasure based on the integral controller output to counteract solid deposits derived from the additive.

Abstract: Disclosed is a method for use in a process of selective catalytic reduction (SCR) after-treatment of an exhaust gas of an exhaust gas stream, where the process comprises the reduction of nitrogen oxides of the exhaust gas stream through the use of a reducing agent derived from an additive. The disclosed method comprises: defining an integrand to be the difference between the rate of injection of the additive and the rate of evaporation of the additive to the reducing agent multiplied by a coefficient (s), wherein the value of the coefficient (s) is between zero and one; producing an integral controller output proportional to the integral of the integrand with time; requesting a countermeasure based on the integral controller output to counteract solid deposits derived from the additive.