Truckenbrod
Greg Truckenbrod, Fridley, MN US
Patent application number | Description | Published |
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20100192548 | SYSTEM AND METHOD TO REGENERATE A DIESEL PARTICULATE FILTER - An exhaust system for use with a diesel engine includes a diesel particulate filter configured to capture particulate matter exhausted from the diesel engine, a first sensor operable to detect a particulate matter accumulation level within the diesel particulate filter, and a second sensor operable to detect an ambient temperature of an environment surrounding the diesel particulate filter. The exhaust system also includes a control module electrically coupled to the first sensor, the second sensor, and the diesel particulate filter. The control module is operable to adjust a first regeneration threshold based on the detected ambient temperature. The control module is also operable to initiate regeneration of the diesel particulate filter when the detected particulate matter accumulation level reaches the first regeneration threshold. | 08-05-2010 |
Gregory R. Truckenbrod, Fridley, MN US
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20110037441 | SYSTEMS AND METHODS OF REDUCING A LOAD ON AN ENGINE - A system for reducing an alternator's load on an engine when the engine drives a second load. The system includes an alternator, a battery, a resistor, and a switch. The alternator includes a stator, a voltage regulator, a rectifier, and a field coil. The battery has a first terminal coupled to the alternator and a second terminal coupled to the alternator. The resistor has a first lead coupled to the first terminal and a second lead coupled to the field coil. The switch is coupled in parallel across the resistor, and is open when the engine drives the second load and closed when the engine is not driving the second load. | 02-17-2011 |
Gregory R. Truckenbrod, Minneapolis, MN US
Patent application number | Description | Published |
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20130255910 | VEHICLE OR ENVIRONMENT-CONTROLLED UNIT HAVING A MULTIPHASE ALTERNATOR WITH A PROTECTED HIGH-VOLTAGE BUS - A mobile environment-controlled unit, such as an over-the-road compartment trailer, having an environmental-control system, such as a refrigeration unit, powered by an alternator and having a high-voltage alternating current (AC) bus. The unit incorporates a high resistance ground scheme and can incorporate a solid-state input module to detect phase-chassis faults. This combination provides an improvement in protection for mobile applications that cannot have a voltage reference (or neutral point) solidly connected to earth ground. | 10-03-2013 |
20130257048 | MOBILE ENVIRONMENT-CONTROLLED UNIT HAVING A MAGNETIC SENSOR FOR A HIGH-VOLTAGE ALTERTNATING CURRENT BUS - A mobile unit (e.g., a vehicle or a mobile environment-controlled unit) having a multiphase alternator, such as a three-phase alternator. The unit incorporates a Hall Effect current sensor to monitor all three phases of the high-voltage AC bus from the alternator. | 10-03-2013 |
20130325257 | CONTROL SYSTEM FOR AUXILIARY POWER UNIT OF A VEHICLE - A method of controlling an auxiliary power unit of a vehicle. The auxiliary power unit is in communication with an air conditioning system of the vehicle and includes an engine and an alternator coupled to the engine. The method includes determining a state of a compressor of the air conditioning system, the compressor including an off state and an on state, reducing an alternator load relative to the engine in response to the compressor being varied from the off state to the on state, increasing the alternator load relative to the engine after a predetermined time interval, and simultaneously operating the alternator up to an alternator load capacity and the compressor up to a compressor load capacity. | 12-05-2013 |
20140316650 | CONTROL SYSTEM FOR AUXILIARY POWER UNIT OF A VEHICLE - A method of controlling an auxiliary power unit of a vehicle. The auxiliary power unit is in communication with an air conditioning system of the vehicle and includes an engine and an alternator coupled to the engine. The method includes determining a state of a compressor of the air conditioning system, the compressor including an off state and an on state, reducing an alternator load relative to the engine in response to the compressor being varied from the off state to the on state, increasing the alternator load relative to the engine after a predetermined time interval, and simultaneously operating the alternator up to an alternator load capacity and the compressor up to a compressor load capacity. | 10-23-2014 |
20140339844 | VEHICLE OR ENVIRONMENT-CONTROLLED UNIT HAVING A MULTIPHASE ALTERNATOR WITH A PROTECTED HIGH-VOLTAGE BUS - A mobile environment-controlled unit, such as an over-the-road compartment trailer, having an environmental-control system, such as a refrigeration unit, powered by an alternator and having a high-voltage alternating current (AC) bus. The unit incorporates a high resistance ground scheme and can incorporate a solid-state input module to detect phase-chassis faults. This combination provides an improvement in protection for mobile applications that cannot have a voltage reference (or neutral point) solidly connected to earth ground. | 11-20-2014 |
Gregory Robert Truckenbrod, Fridley, MN US
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20100229581 | SYSTEMS AND METHODS OF POWERING A REFRIGERATION UNIT OF A HYBRID VEHICLE - Systems and methods for providing power to a refrigeration unit or an air conditioner used on a hybrid vehicle. The system includes an accumulation choke, a PWM rectifier, and a frequency inverter. The accumulation choke is configured to receive a first AC power, a second AC power, and a DC power. The accumulation choke and PWM rectifier convert the received power into an intermediate DC power having a peak voltage. The PWM rectifier provides the intermediate DC power to the frequency inverter. The frequency inverter converts the intermediate DC power to an output AC power. The frequency inverter provides the output AC power to the refrigeration unit. | 09-16-2010 |
Greg R. Truckenbrod, Minneapolis, MN US
Patent application number | Description | Published |
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20120017618 | ENGINE STARTER PREDICTIVE MAINTENANCE SYSTEM - An engine starter system that predicts when starter failure is imminent. The engine starter system monitors engine starter crank speed, battery voltage and ambient air temperature. The crank speed, battery voltage and ambient air temperature are communicated to a controller which compares the crank speed for the measured battery voltage and air temperature to a predicted crank speed for the measured battery voltage and air temperature. If the crank speed is lower than the predicted crank speed, a signal is sent to an alarm. | 01-26-2012 |