Vehicle and Power Unit For It

Abstract

The invention relates to a vehicle comprising at least one electromotor for driving the vehicle, an actuator for controlling the supply of electric power to the electromotor and a power system for providing electric power to the electromotor drive of the vehicle, which power system is provided with first energy storage means for storing a quantity of energy and having a power discharge capacity, first measuring means for measuring the energy condition of the first energy storage means, first power generating means for generating electric power, a computer system, operationally connected to the actuator for receiving a power demand, to the first measuring means for receiving a first energy condition value, and to the first power generating means, wherein the first energy storage means are operationally connected to the electromotor for supplying power thereto, the first power generating means are operationally connected to the first energy storage means for supplying energy thereto, and the computer system controls the power supplied by the first power generating means so that the energy storage means are able to provide the electromotor drive with the power the electric drive needs for driving the vehicle.

1 . Vehicle comprising:
 at least one electromotor for driving the vehicle;   an actuator for controlling the supply of electric power to the electromotor and   a power system for providing electric power to the electromotor drive of the vehicle, which power system is provided with:
 first energy storage means for storing a quantity of energy and having a power discharge capacity; 
 first measuring means for measuring the energy condition of the first energy storage means; 
 first power generating means for generating electric power; 
 a computer system, operationally connected to the actuator for receiving a power demand, to the first measuring means for receiving a first energy condition value, and to the first power generating means, 
   
     wherein the first energy storage means are operationally connected to the electromotor for supplying power thereto, the first power generating means are operationally connected to the first energy storage means for supplying energy thereto, and the computer system controls the power supplied by the first power generating means so that the energy storage means are able to provide the electromotor drive with the power the electric drive needs for driving the vehicle. 
   
   
       2 . Vehicle according to  claim 1  wherein the computer system controls the power supplied by the first power generating means in order for the first energy condition value not to drop below a set first threshold value. 
   
   
       3 . Vehicle according to  claim 2 , wherein the computer system is adapted for adjusting the threshold value during the ride. 
   
   
       4 . Vehicle according to  claim 3 , wherein the computer system has historical power data and/or energy data of the vehicle at its disposal, and is adapted for adjusting the threshold value on the basis of said historical power data and/or energy data. 
   
   
       5 . Vehicle according to  claim 3 , wherein the computer system has a set ride duration at its disposal, and is adapted for adjusting the threshold value on the basis of the set ride duration. 
   
   
       6 . Vehicle according to  claim 1 , wherein the first energy storage means comprise at least one battery. 
   
   
       7 . Vehicle according to  claim 1 , further comprising second energy storage means, preferably capacitors, preferably comprising, several capacitors each having a capacity of at least 800 F and having an energy storage capacity of at least 2 KJ, wherein the second energy storage means are operationally connected to the first energy storage means for receiving electric power therefrom or supplying electric power thereto. 
   
   
       8 . Vehicle according to  claim 1 , further comprising second energy storage means, preferably capacitors, preferably comprising several capacitors, each having a capacity of at least 800 F and an energy storage capacity of at least 2 KJ, wherein the second energy storage means are operationally connected via the actuator to the electric drive for discharging electric power thereto. 
   
   
       9 . Vehicle according to  claims 7  or  8 , further comprising a charging device connected between the first power generating means and the first energy storage means. 
   
   
       10 . Vehicle according to  claim 9 , further comprising a control device, connected to the first energy storage means and the charging device. 
   
   
       11 . Vehicle according to  claim 1 , comprising several first energy storage means, parallel interconnected. 
   
   
       12 . Vehicle according to  claim 11 , comprising several second energy storage means, each second energy storage means being connected to one of the first energy storage means. 
   
   
       13 . Vehicle according to  claim 11  or  12 , wherein each first energy storage means comprises its own charging device and its own control device. 
   
   
       14 . Vehicle according to  claim 11 , wherein the first power generating means are parallel connected to the first energy storage means. 
   
   
       15 . Vehicle according to  claim 1 , wherein the first energy storage means or the several energy storage means are each connected via a converter with a solar panel. 
   
   
       16 . Vehicle according to  claim 1 , wherein the electromotor is a synchronous motor having permanent magnets, provided with a control system for controlling the operation of the electromotor and accommodated in the electromotor. 
   
   
       17 . Vehicle according to  claim 1 , furthermore provided with at least one wheel that is directly driven by means of the electromotor, preferably an electromotor in the wheel, which preferably is provided with liquid cooling and a control system for the electromotor accommodated in said electromotor and specific with the liquid cooling the cooling of windings and the control system. 
   
   
       18 . Vehicle according to  claim 1 , wherein the first power generating means comprise a generator provided with a combustion engine. 
   
   
       19 . Vehicle according to  claim 1 , further comprising second measuring means for measuring the power condition of the first power generating means, and wherein the computer system is further operationally connected to the second measuring means for receiving a second power condition value, and the computer system further sets the power supplied by the first power generating means while using the second power condition value. 
   
   
       20 . Vehicle comprising:
 at least one electromotor for driving the vehicle;   an actuator for controlling the supply of electric power to the electromotor and   a power system for providing electric power to the electromotor drive of the vehicle, which power system is provided with:
 a first energy storage for storing a quantity of energy and having an electric power discharge capacity; 
 a first energy meter for measuring an energy condition of the first energy storage; 
 a first power generating unit for generating electric power; 
 a computer system, operationally connected to the actuator for receiving a power demand, to the first energy meter for receiving a first energy condition value therefrom, and connected to the first power generating unit, 
   
     wherein the first energy storage is operationally connected to the electromotor for supplying power thereto, the first power generating unit is operationally connected to the energy storage for supplying power thereto for supplementing the energy, and the computer system controls the power supplied by the first power generating unit so that the energy storage is able to provide the electromotor drive with sufficient power for driving the vehicle. 
   
   
       21 . Vehicle according to  claim 20 , wherein the computer system activates the power generating unit as long as the first energy condition value is below a set first threshold value. 
   
   
       22 . Vehicle according, to  claim 20 , further provided with a power meter for measuring a power condition of the first power generating unit, wherein the computer system is furthermore operationally connected to the power meter for receiving a power value therefrom, and the computer system further sets the power supplied by the power generating unit to the energy storage adjusted to the power value. 
   
   
       23 . Method for controlling the electric power for an electric drive of a vehicle, wherein a first energy storage supplies electric power to the electric drive, a first power generating unit supplies electric power to the first energy storage, and wherein an energy condition of the first energy storage determines the power to be supplied by the power generating unit. 
   
   
       24 . Power system for supplying electric power to a vehicle having an electric drive, wherein an energy condition of a first energy storage unit determines the electric power to be supplied by a power generating unit to the energy storage unit. 
   
   
       25 . Power system according to  claim 24 , wherein a power discharge capacity of the first energy storage determines the power discharge capacity of the power system. 
   
   
       26 . Power system according to  claim 25 , wherein the power discharge capacity of the first energy storage almost corresponds to the power discharge capacity of the power system. 
   
   
       27 . Vehicle comprising an electric drive, preferably comprising at least one electromotor, having a peak input power and a rated input power an accumulator unit having an energy storage capacity and a power discharge capacity sufficient for supplying the peak input power during a time span necessary for accelerating from a standstill to a cruising speed of the vehicle, and a generator provided with a combustion engine having a rated power discharge approximately corresponding to the rated input power of the electric drive. 
   
   
       28 . Vehicle according to the preceding claim, wherein the energy storage capacity of the accumulator unit is sufficient for providing the electric drive of the vehicle with sufficient power for maintaining the cruising speed during a vehicle-specific driving time. 
   
   
       29 . Vehicle according to  claim 28 , wherein the vehicle-specific driving time is at least 15 minutes, preferably at least 60 minutes. 
   
   
       30 . Power system for providing an electric drive of a vehicle with electric power, comprising an energy storage provided with an energy meter for measuring an energy condition of the energy storage, and a power generating unit provided with a setting unit for setting the electric power to be supplied by the power generating unit, wherein the energy storage supplies electric power to the electric drive, the power generating unit supplies electric power to the energy storage, and the setting unit is operationally connected to the energy meter and sets the electric power to be supplied by the power generating unit to the energy storage on the basis of the energy condition of the energy storage. 
   
   
       31 . Power system according to  claim 30 , wherein the setting unit is connected to the energy meter via the computer system that controls the setting unit. 
   
   
       32 . Vehicle comprising:
 at least one electromotor for driving the vehicle;   an actuator for controlling the supply of electric power to the electromotor and   a power system for providing electric power to the drive of the vehicle, which power system is provided with:
 first power storage means for storing energy for supplying electric power; 
 first measuring means for measuring the power condition of the first power storage means; 
 first power generating means for generating electric power; 
 second measuring means for measuring the power condition of the first power generating means; 
 a computer system, operationally connected to the actuator for receiving a power demand, to the first measuring means and second measuring means for receiving first and second energy condition values, and to the first power generating means, 
   
     wherein the first power storage means are operationally connected to the electromotor for supplying power thereto, the first power generating means are operationally connected to the power storage means for supplying power thereto, and the computer system activates the power generating means as long as the first power condition value drops below a predetermined first threshold value. 
   
   
       33 .- 34 . (canceled)