METHODS FOR MITIGATING OVER-TEMPERATURE DURING AN EXHAUST GAS SYSTEM PARTICULATE FILTER DEVICE REGENERATION

Methods for mitigating over-temperature during an exhaust gas system particulate filter device regeneration are provided. The exhaust gas system can include an exhaust gas stream supplied by an exhaust gas source to a particulate filter device through an exhaust gas conduit. The methods can include detecting an over-temperature during particulate filter regeneration, initiating one or more first mitigation strategies, and shutting down the exhaust gas source. The one or more first mitigation strategies can include inhibiting the particulate filter device regeneration, altering the exhaust gassource operating parameters, and activating a cooling fan. The exhaust gas source can include an internal combustion engine configured to power a vehicle, and the operating parameters can be altered by a torque limiter. 提供了用于在排气系统的颗粒过滤器装置再生期间减轻超温的方法。所述排气系统可以包括由排气源供应、通过排气导管流向颗粒过滤器装置的排气流。所述方法可以包括在颗粒过滤器再生期间检测超温，启动个或多个第减轻方案，以及关闭排气源。所述个或多个第减轻方案可以包括停止所述颗粒过滤器装置的再生、改变所述排气源的操作参数，以及起动冷却风扇。所述排气源可以包括配置为车辆提供动力的内燃机，并且所述操作参数可以通过转矩限制器改变。