This invention allows supercapacitors to be optimized for discharge to systems that may have been designed for electrochemical batteries.

Systems and methods are provided for retrofitting electric vehicles with intelligent systems for tracking, analyzing, and displaying data regarding supercapacitor batteries. Such systems may include sensors and communication interfaces for connecting and providing graphic user interface displays to mobile devices. Such mobile devices may include downloadable applications that allow the mobile device user to interact with and provide control instructions to the intelligent system.

Disclosed herein are systems and methods for energy-based vehicle analysis. A vehicle includes an energy storage unit that is configured to store energy. An energy attribute sensor measures one or more attributes of the energy storage unit. A vehicle attribute sensor measures one or more attributes of the vehicle. The energy storage unit is configured to power a propulsion mechanism of the vehicle. A control system with a processor and a memory estimates a capacity of the energy storage unit based on the one or more attributes of the energy storage unit. The control system estimates a range that the vehicle is capable of reaching using the propulsion mechanism based on the one or more attributes of the vehicle and the estimated capacity of the energy storage unit. The control system causes an output interface to output an indication of the estimated range.

A technique controls regenerative braking to reduce skidding of a vehicle. Such a technique involves imparting rotation to an alternating current (AC) electric motor to move the vehicle to a first commanded vehicle speed; applying a regenerative braking power to the AC electric motor to bring the vehicle to a second commanded vehicle speed; while applying the regenerative braking power, adjusting the level of regenerative braking power applied to follow a predetermined speed reduction rate; while adjusting the level of regenerative braking power applied, provide a limit to the maximum level of regenerative braking power available; and while providing the limit to the maximum level of regenerative braking power available, adjusting the limit to the maximum level of regenerative braking power available based on a current speed of the vehicle.

Methods and systems for activating electric vehicles are provided. One method includes, in response to a first command to activate the vehicle, transitioning the vehicle from an inactive state to a wake state where a controller of the vehicle is activated and the vehicle is prevented from being propelled by an electric motor of the vehicle. The method also includes, in response to receiving a second command to activate the vehicle after receiving the first command, transitioning the vehicle from the wake state to a ready state where the vehicle is permitted to be propelled by the electric motor.

A golf cart beverage holder system having at least one right-side-beverage-holder and at least one left-side-beverage-holder for holding beverage containers and keeping drinks cold during a round of golf. The golf cart beverage holder system is adapted to fit inside existing cup holders on a golf cart.

Disclosed is a trolley baseplate including a plate body having a head end and a tail end, a first locking mechanism on the plate body adjacent to the head end and a second locking mechanism on the plate body adjacent to the tail end. The second locking mechanism is placed corresponding to the first locking mechanism and the structures of the two locking mechanism are fitting. When front and back trolleys are concatenated, the tail end of the front trolley and the head end of the back trolley can be locked to each other by means of the first locking mechanism and the second locking mechanism. The trolleys with the above structures can be concatenated more conveniently, and are not liable to overturn upon sudden braking or turning, which can effectively shorten the time for the staff to fasten two trolleys together.

A robotic mowing system that includes a station and a robotic mower. The robotic mower has a controller and a memorizer, the memorizer stores a working procedure, and after receiving a start command input by a user, the controller executes the working procedure, so as to control the robotic mower to automatically and repeatedly mow and return to the station to be charged until the controller receives a stop command. In this way, the user does not need to input working parameters, and costs are relatively low.

Various electric scooters are disclosed that include a battery receptacle configured to releasably retain a rechargeable battery therein. The electric scooter may include a deck and a strut extending between the deck and a rotatable shaft connected to a handlebar assembly. The battery receptacle may be supported by the strut, and the battery may be insertable into and removed from the battery receptacle through translation of the battery in a direction substantially parallel to a longitudinal axis of the strut. The battery may be configured for use in a power tool in addition to the electric scooter.

A method for remotely controlling the operation of a gas powered golf car, wherein the method comprises, via a global positioning system enhanced fleet management system (GPSEFMS) of the golf car communicatively connected with an internal combustion engine control unit (ECU) and a global position sensor of the golf car: monitoring a location of the golf car as the golf car is moving utilizing geospatial position data communicated from a global position sensor of the golf car to the GPSEFMS; determining when the golf car is one of near or within a geofenced area; and sending control commands to the ECU instructing the ECU to modify operation of the internal combustion engine, and hence operation of the golf car, in accordance with a predetermined operation profile specific to the geofenced area.