Abstract: A drum control system includes a mixture sensor and a controller. The mixture sensor is configured to be positioned within a drum to engage with drum contents to facilitate acquiring drum contents data indicative of a property of the drum contents. The controller is configured to control a drive system to rotate the drum at a first, unmixed speed following receipt of the drum contents by the drum where the drum contents including ingredients of a concrete mixture; acquire the drum contents data from the mixture sensor and monitor the property of the drum contents as the drum rotates; and control the drive system to rotate the drum at a second, mixed speed in response to determining that the property of the drum contents indicates that the ingredients have been sufficiently mixed.

Abstract: A system for tracking refuse collection vehicles includes one or more memory devices having instructions stored thereon that, when executed by one or more processors, cause the one or more processors to perform operations including receiving, from a user device, a first user input indicating one or more parameters of a geofence, the geofence defining a virtual perimeter around a geographical location, determining whether the refuse collection vehicle is within the virtual perimeter of the geofence based on a current location of the refuse collection vehicle, and transmitting, to the user device, a first notification based on a determination that the refuse collection vehicle is within the geofence, the first notification indicating to a user of the user device that the refuse collection vehicle is within the geofence.

Abstract: At least one embodiment relates to a concrete mixing truck includes a chassis, a front axle and a rear axle coupled to the chassis, a lift axle coupled to the chassis and including a tractive element, a lift actuator coupled to the lift axle, a mixing drum rotatably coupled to the chassis, a fill level sensor coupled to the mixing drum and configured to provide a signal indicative of a fill level of a material within the mixing drum, and a controller. The lift axle is selectively repositionable between a lowered position in which the tractive element engages a support surface and a raised position. The controller is operatively coupled to the lift actuator and the fill level sensor and configured to control the lift actuator to reposition the lift axle into the lowered position in response to the fill level exceeding a threshold fill level.

Abstract: A vehicle includes a prime mover and a fuel system. The fuel system includes a tank, a regulator, a first shutoff valve, and a second shutoff valve. The tank is configured to provide a supply flow of fuel. The regulator is controllable to provide a regulated flow of fuel to the prime mover by modulating the supply flow of fuel. The first shutoff valve is positioned to facilitate selectively disengaging the prime mover from the fuel system. The second shutoff valve is positioned to facilitate selectively blocking the supply flow of fuel provided by the tank.

Abstract: A mixer vehicle includes a mixer drum, a sensor, and a controller. The mixer drum is configured to rotate to mix a material within the mixer drum. The sensor is configured to obtain values of one or more properties of the material within the mixer drum. The controller is configured to receive the one or more properties of the material, and receive a user request to discharge the material within the mixer drum. The controller is configured to determine if the material requires additional mixing to obtain accurate values of the one or more properties of the material or to sufficiently mix the material, and limit discharge of the material from the mixer drum in response to a determination that the material requires additional mixing to obtain accurate values of the one or more properties of the material or to sufficiently mix the material.

Abstract: A vehicle includes a chassis, a drum, a load detection system, and a control system. The drum is coupled to the chassis and is configured to mix drum contents received therein. The load detection system is coupled to the chassis and includes a load sensor. The load sensor is positioned proximate to one of a forward end of the drum and a rear end of the drum. The load sensor is configured to determine a portion of a force applied by the drum to the chassis. The control system is communicably coupled to the load detection system and is configured to determine a longitudinal position of a concrete buildup in the drum based on the portion. The control system is also configured to generate at least one of a notification indicating the longitudinal position or a control signal based on the longitudinal position.

Abstract: A concrete mixer vehicle includes a mixer drum, an additive admixture system, and a controller. The additive admixture system includes an air inlet valve, a fluid valve, an air valve, and a pump. The controller is configured to operate the additive admixture system to transition the additive admixture system between an additive addition mode, a drain mode, and a system clear mode. The controller transitions the additive admixture system into the additive addition mode and operates the pump until a desired amount of an additive is added to the mixer drum, transitions the additive admixture system into the drain mode for a predetermined amount of time in response to the desired amount of additive being added to the mixer drum, and transitions the additive admixture system into the system clear mode for a predetermined amount of time to clear stagnant fluid or built up mixture from the additive admixture system.

Abstract: A vehicle system includes a controller configured to acquire environment data, acquire GPS data including information regarding characteristics of a route between an initial location of a vehicle and a destination for the vehicle, receive an initial property of drum contents within a mixing drum of the vehicle, receive a target property for the drum contents, operate a drum drive system of the vehicle at a first drive speed determined based on the initial property, the target property, the environment data, and the GPS data, receive a signal from a mixture sensor indicative of a current property of the drum contents at a current location of the vehicle different than the initial location, and adjust the first drive speed of the drum drive system to a second drive speed where the second drive speed is determined based on the target property, the current property, updated environment data, and updated GPS data.

Abstract: A vehicle includes an engine, a tank configured to provide a supply flow of natural gas, a valve controllable to provide a regulated flow of natural gas to the engine by modulating the supply flow of natural gas, a first conduit extending between the tank and the valve such that the supply flow of natural gas is received by the valve from the tank, and a second conduit extending between the valve and the engine such that the regulated flow of natural gas is provided from the valve to the engine. The regulated flow of natural gas is not diverted from the second conduit at any point along a length of the second conduit.

Abstract: A concrete mixer system includes a control system configured to provide a first input to a drum drive system to rotate a drum of a concrete mixer at a target speed while the drum is empty and clean, acquire operating data regarding an operating characteristic of the drum drive system to determine a baseline operating characteristic of the drum drive system in response to the first input, provide a second input to the drum drive system to rotate the drum at the target speed following one or more uses of the concrete mixer and while the drum is empty, acquire the operating data to determine a current operating characteristic of the drum drive system in response to the second input, and provide a buildup notification indicating that there is a buildup of drum contents within the drum in response to a difference between the baseline operating characteristic and the current operating characteristic exceeding a threshold differential.

Abstract: A vehicle includes a chassis, an engine, a drum assembly, and a control system. The drum assembly includes a drum configured to receive drum contents and a drive system coupled to the drum. The drive system is configured to rotate the drum to agitate the drum contents. The control system is configured to operate the drive system at a drive speed; receive data comprising at least one of (i) a drum speed command from a remote monitoring system, (ii) a signal from a mixture sensor configured to acquire mixture data indicative of a current property of the drum contents, (iii) the current property of the drum contents from the remote monitoring system, and (iv) an initial property of the mixture from at least one of a batching system, the mixture sensor, and a user input device; and adjust the drive speed of the drum based on the data.

Abstract: A vehicle includes an engine, a drum, a drum drive system, and a control system. The drum drive system includes a pump configured to pump a fluid through a hydraulic system and a motor positioned to rotate the drum to agitate drum contents. The control system is configured to perform a calibration test to determine a baseline operating pressure of the fluid in the hydraulic system, perform a buildup detection test to determine a current operating pressure of the fluid in the hydraulic system, and determine that there is a buildup of the drum contents within the drum in response to a difference between the baseline operating pressure and the current operating pressure exceeding a threshold differential. In some embodiments, the calibration test and the buildup detection test are only performed if a temperature of the fluid exceeds a threshold temperature.

Abstract: A fender for a vehicle includes a first set of an inner member and an outer member at a first position, and a second set of the inner member and the outer member at a second position that is longitudinally offset from the first position. The fender also includes a fabric disposed between the inner member and the outer member of the first set at a first end and the inner member and the outer member of the second set at a second end. The fabric extends longitudinally between the first set and the second set.

Abstract: A mixer vehicle includes a mixer drum, a first acceleration sensor, a second acceleration sensor, and a controller. The first acceleration sensor is configured to produce first acceleration signals and the second acceleration sensor is configured to measure accelerations within the mixer drum to produce second acceleration signals. The controller is configured to receive the first acceleration signals from the first acceleration sensor and second acceleration signals from the second acceleration sensor. The controller is further configured to determine a presence of material within the mixer drum based on the first acceleration signals and the second acceleration signals. The controller is further configured to determine one or more properties of the material within the mixer drum based on the first acceleration signals and the second acceleration signals.

Abstract: A concrete mixer vehicle includes a mixer drum, a chute, and a controller. The mixer drum has an inner volume configured to hold a mixture for transportation and placement. The chute is configured to receive mixture exiting the mixer drum and direct the mixture. The controller is configured to receive a selected mode of operation of the mixer drum and the chute. The selected mode of operation is selected from a set of multiple modes of operation of the mixer drum and the chute. The controller is configured to adjust an operation of at least one of the mixer drum or the chute to cause at least one of the mixer drum or the chute to operate according to the selected mode of operation.

Abstract: A vehicle includes an engine, a tank configured to provide a supply flow of natural gas, a valve controllable to provide a regulated flow of natural gas to the engine by modulating the supply flow of natural gas, a first conduit extending between the tank and the valve such that the supply flow of natural gas is received by the valve from the tank, and a second conduit extending between the valve and the engine such that the regulated flow of natural gas is provided from the valve to the engine. The regulated flow of natural gas is not diverted from the second conduit at any point along a length of the second conduit.

Abstract: A vehicle includes an engine, a drum, a drum drive system, and a control system. The drum drive system includes a pump configured to pump a fluid through a hydraulic system and a motor positioned to rotate the drum to agitate drum contents. The control system is configured to perform a calibration test to determine a baseline operating pressure of the fluid in the hydraulic system, perform a buildup detection test to determine a current operating pressure of the fluid in the hydraulic system, and determine that there is a buildup of the drum contents within the drum in response to a difference between the baseline operating pressure and the current operating pressure exceeding a threshold differential. In some embodiments, the calibration test and the buildup detection test are only performed if a temperature of the fluid exceeds a threshold temperature.

Abstract: A method includes acquiring delivery data for contents for transport by a vehicle, the delivery data regarding at least one of a delivery location, a delivery time, or a delivery route; acquiring an initial property of the contents; predicting a delivery property for the contents based on the delivery data and the initial property; acquiring en route data including at least one of (i) content data regarding a current property of the contents, (ii) environment data regarding an environmental characteristic external to the vehicle, or (iii) GPS data regarding at least one of a travel distance, a travel time, traffic information, or a road parameter between a current location of the vehicle and the delivery location for the contents; and updating the prediction for the delivery property for the contents based on the en route data.

Abstract: A vehicle includes a chassis, a drum assembly, and a control system. The drum assembly includes a drum configured to receive drum contents including at least one of ingredients and a mixture and a drive system coupled to the drum. The drive system is configured to rotate the drum to agitate the drum contents. The control system is configured to receive delivery data for the drum contents; receive at least one initial property of the drum contents; predict a delivery property for the drum contents based on the delivery data and the at least one initial property; receive en route data including at least one of mixture data, environment data, and GPS data; and update the predicted delivery property for the drum contents based on the en route data.

Abstract: A vehicle includes a chassis, an engine, a drum assembly, and a control system. The drum assembly includes a drum configured to receive drum contents and a drive system coupled to the drum. The drive system is configured to rotate the drum to agitate the drum contents. The control system is configured to operate the drive system at a drive speed; receive data comprising at least one of (i) a drum speed command from a remote monitoring system, (ii) a signal from a mixture sensor configured to acquire mixture data indicative of a current property of the drum contents, (iii) the current property of the drum contents from the remote monitoring system, and (iv) an initial property of the mixture from at least one of a batching system, the mixture sensor, and a user input device; and adjust the drive speed of the drum based on the data.