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.

A vehicle includes an engine, an electric energy system, a drum configured to mix drum contents received therein, and a drum drive system coupled to the drum and the engine. The drum drive system includes a primary pump, an electric motor powered by the electric energy system, an auxiliary pump fluidly coupled to the mechanical pump and powered by the electric motor, and a drum motor fluidly coupled to the primary pump and the auxiliary pump and positioned to drive the drum to agitate the drum contents.

A vehicle includes an engine, an electric energy system, a drum configured to mix drum contents received therein, and a drum drive system coupled to the drum and the engine. The drum drive system includes a primary pump, an electric motor powered by the electric energy system, an auxiliary pump fluidly coupled to the mechanical pump and powered by the electric motor, and a drum motor fluidly coupled to the primary pump and the auxiliary pump and positioned to drive the drum to agitate the drum contents.

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.

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.

An overridable failsafe brake apparatus for a vehicle is provided. The overridable failsafe brake apparatus includes (a) a lever accessible from outside the vehicle, the lever being operable at a first position and a second position; (b) a brake; and (c) a spring having a first end coupled to the lever and a second end coupled to the brake. (d) The lever disposed in the first position is configured to induce tension in the spring that enables the brake to be activated, and the lever disposed in the second position is configured to reduce tension in the spring to disable the brake from being engaged. A method of operating an overridable failsafe brake apparatus for a vehicle and a vehicle including an overridable failsafe brake apparatus are also provided.

The invention relates to a truck-mounted concrete pump having at least one travelling-drive motor and a hydraulic pumping device for delivering liquid concrete, wherein at least one electric motor is provided and the hydraulic pumping device can be driven either by the at least one travelling-drive motor or the at least one electric motor, characterized in that the travelling-drive motor is connected by way of a power take-off of a transfer gearbox of the travelling-drive train of the truck-mounted concrete pump to a branching gearbox, with a first gearbox input of the branching gearbox being coupled with the power take-off of the travelling-drive motor and a second gearbox input being coupled with the electric motor, and the gearbox output of the branching gearbox being connected to at least one hydraulic pump of the hydraulic pumping device.

The invention relates to a truck-mounted concrete pump having at least one travelling-drive motor and a hydraulic pumping device for delivering liquid concrete, wherein at least one electric motor is provided and the hydraulic pumping device can be driven either by the at least one travelling-drive motor or the at least one electric motor, characterized in that the travelling-drive motor is connected by way of a power take-off of a transfer gearbox of the travelling-drive train of the truck-mounted concrete pump to a branching gearbox, with a first gearbox input of the branching gearbox being coupled with the power take-off of the travelling-drive motor and a second gearbox input being coupled with the electric motor, and the gearbox output of the branching gearbox being connected to at least one hydraulic pump of the hydraulic pumping device.

Techniques control attachment of equipment to a vehicle deck. Such techniques involve positioning an equipment base that serves as a base of the equipment on the vehicle deck. Such techniques further involve extending a latching mechanism of the equipment base to provide a first latching width that captures the equipment base between a set of deck clamps and a deck jamb mounted to the vehicle deck to fasten the equipment to the vehicle deck. Such techniques further involve contracting the latching mechanism to provide the equipment base with a second latching width that enables the equipment base to escape from the set of deck clamps and the deck jamb mounted to the vehicle deck to unfasten the equipment from the vehicle deck.

A vehicle includes a floor plate defining a front and a back of the vehicle, wall sections to receive vehicle loading and transfer the vehicle loading to the floor plate, and a fluid delivery assembly supported by the floor plate. The fluid delivery assembly includes an intake manifold that resides at the back, an outlet that resides at the front, and a set of lateral conduits extending between the intake manifold and the outlet to laterally convey fluid entering the intake manifold from a fluid source to the outlet for delivery to a fluid target. Accordingly, the back may connect to the fluid source and the front may deliver the fluid thus keeping the vehicle sides and top available for other uses. Moreover, the low isolated placement of the fluid delivery assembly safeguards the fluid delivery assembly and provides a low center of gravity for vehicle stability.